Similar to how iron is imported and transported within cells, mitochondrial iron import and transport are tightly controlled, careful processes intended to prevent undesired.
Which of these are hollow rods that help the cell form and are supported?The third main component of the cytoskeleton, microtubules, are hard, hollow rods with a diameter of around 25 nm. Microtubules are dynamic, constantly assembling and disassembling within the cell, much like actin filaments.
What form does the packaging and modification of proteins take?Figure 1: Proteins are modified and organized for transport within the cell by the Golgi apparatus. In cells, the Golgi apparatus and ER are frequently found together.
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in a study of the forces involved when motor proteins
Motor proteins also produce force locally within the network of cytoskeletal polymers, which transmits these forces to determine the shape of each cell and, ultimately, the architecture of tissues and whole organisms. Chapters 37 to 39 and 44 illustrate how motors move cells and their parts.
Classify the examples as prezygotic or postzygotic barriers. Prezygotic barrier Postzygotic barrier Answer Bank A horse and donkey mate to produce a sterile mule. One bird species prefers open areas, whereas another bird species prefers wooded areas. One frog species mates in the spring, whereas another frog species mates in the summer. Individuals from two different species mate, but the resulting embryo dies before birth.
Prezygotic and Postzygotic barriers are reproductive isolation mechanisms, which avoid mating events or prevent viable and fertile mixtures between different species. Pre-zygotic barriers: One bird species prefers open areas, whereas another bird species prefers wooded areas. One frog species mates in the spring, whereas another frog species mates in the summer. Postzygotic barrier: A horse and donkey mate to produce a sterile mule. Individuals from two different species mate, but the resulting embryo dies before birth.
What is reproductive isolation?This is a mechanism through which different species or populations do get to mate and produce fertile offspring. This mechanism allows the accumulation of genetic differences and favors speciation.
Different barriers inhibit or interrupt the genetic flow between species.
Reproductive barriers are isolation mechanisms that prevent mating between two or more species. There are two types of barriers,
prezygotic ⇒ that avoids fertilization between individuals of different species, postzygotic ⇒ that impedes the zygote from developing and reaching the adult stage.Pre-copulatory or pre-zygotic barriers include:
Ecological or by habitat isolation; Seasonal or temporal; Sexual o ethologic; Mechanic; Gametes incompatibility.Postzygotic mechanisms barriers include:
Hybrid inviability, Hybrid sterility, Hybrid reduced viability or fertility, Cytoplasmic interactions.Examples,
Pre-zygotic barriersOne bird species prefers open areas, whereas another bird species prefers wooded areas (Ecological or by habitat isolation)
One frog species mates in the spring, whereas another frog species mates in the summer (Seasonal or temporal isolation)
Postzygotic barrier
A horse and donkey mate to produce a sterile mule (Hybrid sterility).
Individuals from two different species mate, but the resulting embryo dies before birth (Hybrid inviability).
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which of the following tactile receptors is found in the dermal papillae? identification of tactile receptors which of the following tactile receptors is found in the dermal papillae? identification of tactile receptors tactile disc ruffini corpuscle free nerve endings tactile corpuscle
Meissner corpuscle or tactile corpuscle is the tactile receptor found in the dermal papillae.
Professor Georg Meissner and Professor Rudolf Wagner initially identified Meissner corpuscles, often referred to as Wagner-Meissner corpuscles or tactile corpuscles, as a subset of mechanoreceptors in 1852. These unique encapsulated nerve terminals transmit low-frequency vibration and fine touch sensations to the central nervous system from the dermal papillae of glabrous skin (CNS). Meissner corpuscles are crucial for somatosensory acuity, particularly in the palmar skin and digital extremities. This has clinical implications for diabetic neuropathy, peripheral neuropathy, and the aging-related deterioration of dermatological tactile sense.
Meissner corpuscles are ellipsoid mechanoreceptors that are situated 150 micrometres superficially within the dermal papillae. The corpuscles have a long axis that is perpendicular to the skin's surface and are between 20 and 40 micrometres in diameter and 80 and 150 micrometres in length. Less than three corpuscles per papilla, with one corpuscle every two to four dermal papillae. The site of genesis affects the receptors' size and density.
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Which of the following is NOT a result of increased ATP in the pancreatic beta cell?
Group of answer choices
insulin release
vesicle fusion
potassium release
calcium intake
Vesicle fusion is NOT a result of increased ATP in the pancreatic beta cell.
What is ATP?
Cells consume and store energy from adenosine triphosphate (ATP), which is the energy source. An adenine-based nitrogenous base, ribose sugar, and three serially bound phosphate groups make up the nucleoside triphosphate structure of ATP.
When macromolecules like proteins and lipids are moved into and out of the cell, ATP is an essential component of the process. Active transport mechanisms that move these molecules over a concentration gradient are powered by the energy released during ATP hydrolysis.
Therefore, Vesicle fusion is NOT a result of increased ATP in the pancreatic beta cell.
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classify each mutation example as definitely positive, definitely negative, or most likely neutral. each category has two examples. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. beneficial mutations neutral mutations harmful mutations answer bank
A beneficial mutation is one that has a good effect on an organism. These mutations are uncommon yet important. The benefit that a beneficial mutation provides the organism is passed down from generation to generation, increasing the chances of survival for the offspring.
Neutral mutations:
Neutral mutations are changes in DNA sequence that are neither beneficial nor harmful to an organism's ability to survive and reproduce. In population genetics, neutral mutations are mutations in which natural selection has no effect on the spread of the mutation in a species.
Harmful mutations: Mutations that are harmful can result in genetic diseases or cancer. A genetic condition is an illness that results from a mutation in one or more genes. Cystic fibrosis is a human example. A single gene mutation causes the body to produce thick, sticky mucus, which clogs the lungs and blocks ducts in digestive organs.
What is mutation?
A mutation is a change in an organism's DNA sequence. Mutations can occur as a result of errors in DNA replication during cell division, mutagen exposure, or viral infection.
What causes mutation?
Mutations can occur as a result of mistakes in DNA replication during cell division, mutagen exposure, or viral infection. Germline mutations (those that occur in eggs and sperm) can be handed on to offspring, but somatic mutations (those that originate in body cells) cannot.
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Full Question: Classify each mutation example as definitely positive, definitely negative, or most likely neutral. Each category has two examples.
structural damage from tornadoes is usually caused by
High winds are frequently to blame for tornado-related structural damage.
Why do tornadoes form?Thunderclouds contain warm, humid air that rises as chilly air that is accompanied by rain or hail descends.These circumstances might result in the formation of whirling air currents inside the cloud. Although the whirling currents begin horizontally, they have the ability to turn vertical, drop from the cloud, and eventually form a tornado..
What three types of tornadoes are there?Examples of various tornado types include the multiple vortex tornado, landspout, and waterspout.A waterspout is caused by a massive cumulus or cumulonimbus cloud coupled to a spiraling funnel-shaped.
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Answer and match them
Answer:
Answered (?)
Explanation:
1. C
2. E (?)
3. F
4. D
5. B
6. A
I wasn't sure about E because for me I would say that means 'extinction' but that's not an answer, I tried my best and hope this helps!
What is the ICD-10 code for suprapubic catheter status?
Answer:
k
Explanation:
The ICD-10 code for suprapubic catheter status is Z96.651. This code falls under the category of "persons with potential health hazards related to genitourinary devices, implants, and grafts" and specifically refers to the presence of a suprapubic catheter for drainage of urine.
What is ICD-10?ICD-10 code Z96.651 is used to indicate the presence of a suprapubic catheter, which is a medical device used to drain urine from the bladder through a small opening in the lower abdomen. This code is part of the ICD-10 system, which is a standardized classification system used by healthcare providers and organizations to code and report medical diagnoses and procedures.
Hence, the ICD-10 code for suprapubic catheter status is Z96.651. This code falls under the category of "Persons with potential health hazards related to genitourinary devices, implants, and grafts."
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the theory of endosymbiosis and history of life on earth allows one to predict that the gene sequences that are responsible for encoding functional, mitochondrial ribosomes in a particular tree likely share many similar nucleotides in the sequences from the ribosomal genes of other plant species bacterial species other tree species
The theory of endosymbiosis and the history of life on earth allows one to predict that the gene sequences that are responsible for encoding functional, mitochondrial ribosomes in a particular tree likely share many similar nucleotides in the sequences from the ribosomal genes of other bacterial species (Option II).
What is the theory of endosymbiosis?The theory of endosymbiosis is a model to explain the origin of eukaryotic cells, which postulates that these types of organisms evolved as a consequence of symbiotic relationships between primitive bacterial cells that converted into mitochondria and chloroplasts in animals and plants.
Therefore, with this data, we can see that the theory of endosymbiosis is based on the scientific idea that eukaryotic cells as observed in plants and animals generated due to symbiosis with primitive bacterial cells that entered into the cell and performed cellular respiration and photosynthesis.
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what feature of fats makes them hydrophobic
arginase, a key enzyme in liver urea production, requires four ____ atoms per molecule. group of answer choices iron copper zinc manganese
Ceruloplasmin is one illustration; it has eight copper atoms per molecule. Copper and zinc provide as examples of the needs for and toxicity of important trace elements.
What trace mineral is necessary for gluconeogenesis' primary enzyme to be activated?Manganese is a trace mineral that functions as a cofactor for enzymes that produce urea, cholesterol, and glucose (gluconeogenesis) (amino-acid catabolism in the liver).
Which Micromineral is deemed crucial for healthy brain function?The liver, kidney, pancreas, and bones are where manganese is primarily deposited. and contributes to the regulation of blood sugar, calcium absorption, and fat and carbohydrate metabolism. For healthy nerve and brain function, manganese is also essential.
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Design a Device That Minimizes the Force on an Object During a Collision
In this project, you will design, evaluate, and refine a device that minimizes the force
on an object during a collision. You should apply scientific ideas to develop your
device and try to avoid unanticipated effects. Apply the law of conservation of linear
momentum to the situation in which your device should be used, and compare the
velocities and momenta of objects in the system. Note that the total momentum of a
system can change, but the change is balanced by the momenta of objects outside
the system. In your design, you should specify any criteria and constraints, such as
limiting risk. You should be able to quantify how your design satisfies these criteria
and constraints. You may have to break down complex criteria into simpler ones and
prioritize certain criteria over others.
Background
An object's momentum is based on the mass and velocity of the object. The more
momentum the object has, the harder it is to stop the object or change its direction.
The equation for momentum is p = my, where p is momentum, mis mass, and vis
velocity. When a force is applied to an object, the object's velocity changes.
Answer: W h a t
Explanation: confusion
_____ provides employees with specific, identifiable knowledge and skills for use in their present jobs. a. Development b. Recruiting c. Networking d. Training
Answer:
D
Explanation:
Assuming ri, r2 are negative constants and that $1,2, and $2,1 are positive constants, what do the following equations represent? 1 dN1 = ri + $1,2N2 Ni dt 1 dN2 = r2 + 82,1N1 N2 dt a. Competition b. Predation c. Facultative mutualism d. Obligate mutualisme.
Assuming a, r2 are negative constants and that $1,2, and $2,1 are superb constants choice D obligates mutualism.
D. Obligate mutualisme.
crosses x-axis --> 1 species relies upon on the alternative/ negative population increase at some unspecified time in the future.
The negative constant time period is n. If n is wonderful, the graph of a line with slope m intersects the y-axis above the starting place at (0, n) If n is bad, the graph of a line with slope m intersects the y-axis under the foundation, at (0, n). The phrase "tremendous linear feature" isn't used.
The regular can be high quality or negative. If for a few purposes we already know it is able to simplest have values such as 1 and –1, we may say it equals ±1. Mathematical symbols are used mostly for comfort they do not make anything greater correct.
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lactic acid was generated by the leg muscles after a bunch of hard squats and is now circulating in the blood which of the following is likely to occur as a compensation of this lactic acid buildup
The following are likely to occur as a compensation of lactic acid buildup:
Decreased urinary pHIncreased H+ in bloodIncreased hyperventilationIncreased H+ selectionWhat is lactic acid?
Red blood cells and muscle cells are the principal producers of lactic acid. When oxygen levels are low, it develops when the body metabolizes carbohydrates for energy.
In the body, lactic acid serves three basic purposes:
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electrons excited in photosystem ii help the chloroplast produce
As excited electrons move through the electron transport chain, NADPH is created.
The photosystem II's source of the excited electrons is what?A chlorophyll molecule's excited electron is moved to the an electron acceptor at the reaction center.It's an oxidation-reduction reaction right now.An electron from water is used in photosystem II to replace the electron lost from the reaction center.
What is produced during photosynthesis by photosystem 2?In oxygenic photosynthetic organisms, photosystem II is the first membrane protein complex.It uses light energy to catalyze the oxidation of water, which results in the production of atmospheric oxygen.
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What amino acid sequence would be produced from the dna sequence tac ccc gca agt?.
According to the genetic code, the amino acid sequence that would be produced from the DNA sequence tac ccc gca agt is Tyrosine - Proline - Alanine - Serine.
What is the genetic code?The genetic code is a universal code encrypted in the DNA nucleotide sequence that specifies the amino acids that will be added to the protein during translation.
The genetic code is composed of triplets of nucleotides called codons that indicate specific amine acids during polypeptide synthesis, for example, the codon gca encodes for the amino acids alanine, while ccc encodes for proline.
Therefore, with this data, we can see that the genetic code is a code based on the linear order of nucleotides that are present in a given DNA nucleotide sequence and indicates the amino acids that will be added to the protein during the translation process in the cell.
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What is sea farming?
Answer: Aquaculture (sea farming) is the cultivation of aquatic animals and plants in controlled environments.
Explanation:
Seawater farming addresses the severe lack of freshwater and undesirable soil conditions for agricultural activities in coastal regions. Saltwater, instead of freshwater, can be used to directly support a wide range of sustainable agricultural activities and enrich the soils in the coastal regions.
Answer: um well its kinda like ----- when animals and plants are controlled environments of farming seaweed and shellfish well it's like water based farming
Explanation: hope it helps
which bones unite to form the highlighted bone?
The highlighted bone is named the sternum. The sternum, which lies in the middle of the chest, is where the ribs connect to the body.
Which joint does the humerus's highlighted bone form?The humeral head's ball and glenoid's socket connect at the glenohumeral joint. The supraspinatus, infraspinatus, teres minor, and subscapularis muscles' tendons make up the rotator cuff, which joins the humerus to the scapula. Muscle and bone are joined via tendon.
What develops in the indicated curvature?When a child is able to sit up on their own, the lumbar curvature that is highlighted begins to develop. The structure in bold allows for head lateral rotation. The structure in bold allows for head lateral rotation.
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use the following model of a eukaryotic transcript to answer the question. e1-4 refer to the exons, and i1-3 refer to the introns in the pre-mrna transcript. 5' utr e1 i1 e2 i2 e3 i3 e4 utr 3' suppose that exposure to a chemical mutagen results in a change in the sequence that alters the 5' end of intron 1 (i1). which of the following results might occur? question 6 options: premature transcriptional termination loss of e1 loss of the gene product inclusion of i1 in the mrna
The exposure to a chemical mutagen results in a change in the sequence that alters the 5' end of intron 1
5' UTR E1 E2 E3 E4 UTR 3'
inclusion of I1 in the mRNA
Asymmetric RNA Splicing The first genes with alternative RNA splicing were discovered in the 1970s.
When multiple combinations of exons are joined to make the mRNA, a procedure called alternative RNA splicing enables diverse protein products to be synthesized from a single gene. The frequency of various splicing alternatives is controlled by the cell as a way to regulate the production of different protein products in different cells or at different stages of development.
Alternative splicing can be haphazard, but more often it is controlled and acts as a mechanism of gene regulation. In eukaryotes, alternative splicing is widely recognized as a frequent process of gene control. One estimate place the proportion of human genes that are expressed as numerous proteins by alternative splicing at 70%.
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The capillaries that nourish the epithelium and absorb digested nutrients lie in the ________.
A. Muscularis mucosae
B. Serosa
C. Adventitia
D. Lamina propria
The capillaries that nourish the epithelium and absorb digested nutrients lie in the Lamina propria (Option D).
What are the capillary blood vessels?The capillaries are small vessels capable of transporting oxygen and nutrients to all cells of the body in order to perform cellular respiration, which is fundamental to obtaining energy in the form of ATP.
Therefore, with this data, we can see that the small capillary blood vessels that lie in the lamina propria and other tissues in the body are required to transport both oxygen and nutrients.
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Which region shows the population of cells with the highest amount of dna per cell?.
Compare the peaks in regions A, B, and C of the histogram for the control sample. Region C displays the cell population with the most DNA per cell.
The correct response is G1 for region A, S for region B, and G2 for region C. In addition to biology, region c displays the cell population with the most DNA per cell. As the S phase develops, the amount of DNA in each cell varies, giving the S phase cells a range of fluorescence intensities. Most cells are present during the G1 phase of the cell cycle.
Comparing the peaks in the control sample's histogram's regions A, B, and C, we can conclude that region C represents the cell population with the highest DNA content per cell.
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Your question is incomplete. Please find the complete question below.
In the control sample, compare the peaks in the histogram in regions A, B, and C.
Which region shows the population of cells with the highest amount of DNA per cell?
Region C
What would happen to a cell that didn’t replicate its dna before cell division?
The cell will not proceed with the further processes.
What is equational division?
Chromosome replication and equal distribution between the two daughter cells occur during the cell division process known as mitosis. Each daughter cell has the same number of chromosomes as the parent cell, making them diploid. Thus, mitosis is also referred to as equational division.
Unequal division will result if the cell didn't replicate prior to actually cell division. As a result of the checkpoints, it won't move on to the next step. The checkpoint will later start the apoptosis process, which results in programmed cell death.
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In an asexual life cycle, cells reproduce by meiosis. fertilization. All of the answer choices are correct. meiosis and fertilization. mitosis.
Answer:
k
Explanation:
Label the structures found within a skeletal muscle. Muscle fiber Myofibril Sarcoplasmic reticulum Filaments Perimysium Sarcolemma Epimysium Endomysium Fascia Epimysium Endomysium Fascia Tendon Fascicle Reset
The structures found within a skeletal muscle.
muscle fiberPerimysiumactinTropomyosinTroponinmyosinWhat is skeletal muscle?Skeletal striated muscle tissue is formed by bundles of very long, multinucleated cylindrical fibers known as skeletal striated muscle fibers. These bundles are surrounded by the epimysium, an outer membrane of dense connective tissue. Septa of very thin connective tissue, called perimysium, depart from these membranes, through which blood vessels enter the muscles. They are muscles of voluntary movement.
Myosin is made up of two subunits, light meromyosin and heavy meromyosin. The light meromyosin corresponds to the largest portion of the rod, while the heavy meromyosin is composed of the smallest part of the rod next to the globular projection.
The sarcolemma consists of a cell membrane, called the plasma membrane, and a lining of a thin layer of polysaccharide material, with many thin collagen fibrils.
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Researchers performing __________ insert a weak electric current into the brain to stimulate it. a. lesioning b. esb c. eeg d. pet please select the best answer from the choices provided a b c d
Researchers performing ESB technique insert a weak electric current into the brain to stimulate it.
What does ESB contain in psychology?
Electrical stimulation of the mind (ESB) is a method which includes the creation of a susceptible electric modern into precise places withinside the mind via way of means of the use of more than one microelectrode to use brief pulses of electrical currents supposed to imitate the herbal glide of impulses via the neural pathways.
What contribution do ESBs make to our understanding of the brain?
Electrical brain stimulation (ESB) is useful in a variety of settings, including neurosurgery and experimental research. Neurosurgeons can use this procedure to help doctors determine which brain tissue needs to be removed.
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Match each function with the correct cytoskeletal structure.
A. Motor Proteins
B. Microtubles
C. Intermediate filaments
D. Actin
The cytoskeleton of a cell is made up of microtubules, actin filaments, and intermediate filaments. These structures give the cell its shape and help organize the cell's parts. In addition, they provide a basis for movement and cell division.
What are their functions?Each function with the correct cytoskeletal structure are as follows:
A.)Motor proteins:-Uses ATP to move vesicles within cells. Use ATP to bend filaments.
B.)Microtubles:-Chromosome sorting during mitosis.
C.)Intermediate filaments:-A strong structural protein that maintains cellshape.
D.)Actin:- Structural protein used to move cells. Structural protein used in muscle contraction.
What is ATP?Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.
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Can YOU curl your tongue up on the sides?
Scientists Debunk Familiar Tongue-Rolling Lore | HuffPost Impact
We are pretending that tongue-curling in humans is a dominant genetic trait.
Suppose a man who is Tt for tongue-curling marries a woman who is also Tt for this trait. What are the possible genotypes and phenotypes of their children, and the percent chance for each?
Genotype Phenotype (curl or no curl) Percent Chance (number only)
TT
Tt
tt
Word Bank:
2525curl750100no curlcurl50
Rolling, folding, spinning, adjusting, and turning of the tongue are all included in the definition of tongue twisting.
What is tongue twisting.?The tongue is a muscle organ in humans that can detect food flavors and is utilized for verbal communication. Genetics has an impact on every facet of a person.
The shape or movement of one's tongue is also influenced by their unique gene makeup. The ability to twist one's tongue is neither a benefit nor a drawback.
Not a genetic disorder or disease, tongue-twisting is an individual's distinctive use of his tongue. An allele of the gene known as the dominant allele is responsible for the ability to roll one's tongue.
Therefore, Rolling, folding, spinning, adjusting, and turning of the tongue are all included in the definition of tongue twisting.
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Which of the following statements about meiosis and mitosis is true?
a) In meiosis II and mitosis, a diploid cell divides.
b) Meiosis II is similar to mitosis in that sister chromatids of each chromosome separate.
c) In mitosis and meiosis I, homologous chromosomes move independently of each other.
d) Each daughter cell produced during meiosis and mitosis is genetically identical to the parent cell.
Sister chromatids of each chromosome separate during meiosis II, which is identical to mitosis in this regard.
The ideal answer is B.
Which of the following statements concerning meiosis and mitosis is true?What is the correct way to describe meiosis and mitosis? While the byproducts of mitosis are all the same, those of meiosis can vary from one another (except for rare mutations).
How do meiosis and mitosis differ from one another?Meiosis creates cells that are genetically distinct from the parent and have half the amount of DNA as mitosis, which creates two genetically identical "daughter" cells from a single "parent" cell. The majority of cells in the body constantly undergo mitosis, while some do it more frequently than others.
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The following F1 cross is made: BBGg x Bbgg. Which is not a possible outcome in the F2 generation?
`When the cross of BBGg x Bbgg is made then in this situation the gametes that are formed from BBGg are BG,Bg and from Bbgg is Bg,bg are BBGg,BBgg,BbGg and Bbgg. The four outcomes are BBGg,BBgg,BbGg and Bbgg and the homozygously dominant and the recessive is absent.
What is homozygous ?It is the situation in which the same types of gametes are present.
In the cross of BBGg x Bbgg the gametes that are absent will be the homozygous dominant condition and the homozygous recessive as well. BBGg,BBgg,BbGg and Bbgg are the gametes that are all heteroygous.
Heterozygous condition is the condition in which different gametes are present that is different different situation is present and the gametes in the offspring are totally different.
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