Which of the following is NOT a component of DNA?
a. The pyrimidine uracil
c. The purine adenine
b. Five-carbon sugars
d. Phosphate groups
Answer:
A
Explanation:
Gonorrhea is a sexually transmitted disease. The male complains of __________ and the female complains of __________.
Gonorrhea is a sexually transmitted disease, the male complains of swollen testicles and the female complains of yellowish vaginal discharge.
What is a sexually transmitted disease?Gonorrhea in males can result in a painful infection in the testicles and prostate gland, which in a small percentage of instances may impair fertility.
In a small percentage of cases, untreated gonorrhea can spread through the bloodstream and result in life-threatening infections in other body areas (sepsis).
Therefore, for a number of reasons, women in particular are more likely than males to get gonorrhea, syphilis, and chlamydia.
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Muscle cells contain , a red pigment that stores oxygen needed for muscular activity.
Answer: myoglobin
Explanation:
Muscle cells contain myoglobin, a red pigment that stores oxygen needed for muscular activity.
Myoglobin is a protein found in muscle cells that is responsible for storing and transporting oxygen within the muscle tissue.
It plays a crucial role in providing oxygen to the muscles during periods of high activity or when oxygen supply is limited.
Myoglobin has a unique structure that allows it to bind oxygen molecules.
It contains a heme group, which is similar to the heme found in hemoglobin, the protein responsible for oxygen transport in red blood cells.
The heme group has an iron ion at its core, which binds to oxygen molecules.
When the oxygen concentration is high, such as during rest or low-intensity exercise, myoglobin binds to oxygen, storing it within the muscle cells. This stored oxygen can be readily released when the demand for oxygen increases, such as during intense exercise or when the oxygen supply is reduced, ensuring a constant supply of oxygen to the working muscles.
Thus, the complete sentence is "Muscle cells contain myoglobin, a red pigment that stores oxygen needed for muscular activity".
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Complete the sentence.
Muscle cells contain _________, a red pigment that stores oxygen needed for muscular activity.
which of the following receptors is specific to sensing vibration and deep pressure? group of answer choices
Pacinian corpuscles is a specific receptor to sensing vibration and deep pressure which is present inside the body.
Somatosensation is the term for the mixed sensory category that includes all feelings felt in the limbs, joints, skin, and mucous membranes. The term "somatosensation" is also used to describe the tactile sense, or more often, the sense of touch. Somatosensation affects both the interior and exterior of the body. The skin, mucous membranes, muscles, joints, internal organs, and circulatory system all contain various types of receptors. Keep in mind that in animals, the epidermis is the top layer of skin. It is rather thin, made up of keratin-filled cells, and has no blood supply. The epidermis acts as a defense receptor against infections and water intrusion. Blood arteries, sweat glands, hair follicles, lymphatic vessels, and sebaceous glands that secrete lipids are all found in the considerably thicker dermis under this layer. The subcutaneous tissue, also known as the hypodermis, is the fatty layer that lies below the epidermis and dermis and contains blood vessels, connective tissue, and sensory neuron axons.
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PLEASE HELP AND GET POINTS!!
Drag the phrase to indicate which fossil fuel it describes. A phrase may be used more than once. (2 points)
coal: Oil: Natural gas:
:: formed at at the bottom of swamps
oil
:: made mostly of methane
natural gas
::made mostly of hydrocarbons
:: sediment, rock, and water apply pressure and heat to plant remains
:: formed at the bottom of the ocean where sediment, rock, and water apply pressure and heat
⠀⠀
The correct phrase for the word is the following:
Coal: sediment, rock, and water apply pressure and heat to plant remains.
Oil: formed at the bottom of the ocean where sediment, rock, and water apply pressure and heat.
Natural gas: made mostly of methane.
What are natural gases?Natural gas, when extracted, can contain a range of elements and molecules other than methane. A natural gas well may contain water, ethane, butane, propane, pentanes, hydrogen sulfide, carbon dioxide, water vapor, and, on rare occasions, helium, and nitrogen.
Therefore, the correct options are coal: 3, Oil: 5, and Natural gas: 2.
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Answer:
Sediment, rock, and water apply pressure and heat to plant remains is how coal forms. Oil is formed at the bottom of the ocean where sediment, rock, and water apply pressure and heat. Natural gas is mostly made from methane.
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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Why can't yeasts produce ATP anaerobically indefinitely?
Yeasts can't produce ATP anaerobically indefinitely because at higher levels ethanol is a toxic waste product and causes cell disruption of yeasts.
What are yeasts?
Yeast, one of about 1,500 species of unicellular fungi, most of which belong to the phylum Ascomycota and a few to the phylum Basidiomycota. Yeast fungi are found on soils and plant surfaces worldwide and are especially common in sugar-rich media such as floral nectar and fruits.There are hundreds of economically important Ascomycota yeast cultivars. Species commonly used in the production of bread, beer and wine are selected strains of Saccharomyces cerevisiae. Several yeasts are dangerous pathogens of humans and other animals, most notably Candida albicans, Histoplasma, and Blastomyces.
Therefore, Yeasts can't produce ATP anaerobically indefinitely because at higher levels ethanol is a toxic waste product and causes cell disruption of yeasts.
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In gene expression, the goal of translation is to A. make a mRNA nucleotide sequence from a specific gene. B. make a DNA nucleotide sequence from a specific gene. C. read codons and incorporate corresponding amino acids into a growing polypeptide chain D. make a new gene that will be passed on to the next generation
In gene expression, the goal of translation is to read codons and incorporate corresponding amino acids into a growing polypeptide chain (option C).
What is gene expression?Gene expression is the transcription and translation of a gene into messenger RNA and thus into a protein.
It is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect.
Gene expression consists of two processes namely;
TranscriptionTranslationTranscription is the synthesis of RNA under the direction of DNA. It is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).
On the other hand, translation is the process whereby a strand of mRNA directs assembly of amino acids into proteins within a ribosome.
Therefore, option C is the correct description of the goal of translation.
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What is the term for non-bonding electrons sometimes present in covalent molecules?
O Lone pairs
O Valence electrons
O Electrons
O Mobile electrons
Answer: Lone pairs
Explanation: a lone pair has no bonding
Answer:
Lone Pairs is the answer
Which structure-function pair is mismatched? a. microtubule; muscle contraction b. ribosome; protein synthesis c. Golgi; protein trafficking d. nucleolus; production of ribosomal subunits
The structure-function pair is which was mismatched from the task above is microtubule; muscle contraction.
The correct answer choice is option a.
What is microtubule mismatched with the function of muscle contraction?The simple reason why microtubule is wrongly mismatched with the function of muscle contraction simply is that the microtubules help to support cell division and protection to cell shape. That being said, cell structures which are found within the cytoplasm are known as cytoplasmic organelles.
In conclusion, we can now confirm from the explanation given above that microtubules are found in the cytoplasm of eukaryotic cells.
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Which of the following helps an agonist work?
a. a synergist
b. a fixator
c. an insertion
d. an antagonist
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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in earlier chapters your read about receptors in vision. rods play a role in light, and cones play role in light. group of answer choices
At dim light levels, rods are responsible for vision (scotopic vision). At bright light levels, cones become active (photopic vision).
what are rods and cones?
Rods and cones are the two categories of photoreceptors found in the human retina that collect light. Cones are in charge of vision at higher light levels, whereas rods are responsible for vision in low light. Mesopic light levels are those where both are usable.
Rods Lacking in spatial acuity and unable of mediating color, they are capable of scotopic vision (low light levels). The retina's outer edges are densely populated. They are rod-shaped, which helps with nighttime or low light vision. Include the vitamin A-rich pigment rhodopsin, which is important for night vision and makes rods sensitive to light.
Cones are responsible for excellent spatial acuity, photopic vision (higher light levels), and color perception. Most often observed in retina, they are primarily inhabited in the central fovea region. Conical in shape, they aid in the distinction of color and other subtle characteristics.
Long-wavelength sensitive cones (L-cones), middle-wavelength sensitive cones (M-cones), and short-wavelength sensitive cones are the three categories (S-cones). These are made up of violet-colored iodopsin pigment.
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How is an element's atomic number like a person's fingerprint?
t/f: points that cluster together have greater 16s rrna gene sequence similarity than points that are farther apart.
Using 16S rRNA gene sequencing data, which are genetic markers used to classify different types of microorganisms, we assess the framework.
How can T cells help the immune system respond?Virus-infected host cells are recognized by cytotoxic T lymphocytes, who then kill them. The foreign antigen shown on the host cell's MHC I molecules helps cytotoxic T cells (CT cells) identify an infected host cell.
ls7c: How does a vaccination aid in illness prevention?
How does a vaccine aid in the prevention of a disease? By producing a population of plasma cells, it raises the level of antibody in the blood. Memory cells are produced in greater numbers, hastening the body's response to an actual infection.
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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
Muscle contraction depends on ATP hydrolysis. During periods of intense exercise, muscle cells rely on the ATP supplied by three metabolic pathways: glycolysis, mitochondrial respiration, and the phosphagen system. Figure 1 shows the rates at which the three metabolic pathways produce ATP following the start of an intense period of exercise.
Which of the following correctly uses the data to justify the claim that the phosphagen system is an immediate, short-term source of ATP for muscle cells?
ATP production by the phosphagen system increases and decreases rapidly following the start of the exercise period.
ATP production by the phosphagen system increases and decreases rapidly following the start of the exercise period.
What is ATP?
Adenosine triphosphate (ATP) is the cellular energy source for usage and storage. 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 are able to move these molecules over a concentration gradient because the hydrolysis of ATP supplies the energy needed. The source of energy in a cell is ATP. Cells are able to safely store energy in tiny packets and only release it when absolutely necessary. In other words, ATP bridges the gap between activities that need energy, like synthesis and those that release energy, like the breakdown of food.
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Question is in the picture
C. Physical
Being a landscaper requires physical work as they will be doing a lot of shoveling, bending, lifting, etc. Landscapers work outside, performing various tasks within the landscapes. They can either work in rural areas or urban areas. They have flexible skills, they are seasonal workers, self-employed, and residents.
Landscapers work in a variety of sites and locations. They have to work in extreme temperatures and weather conditions. They should have the ability to handle chemicals and fertilizers safely.
They must know of highly sophisticated equipment and should be able to handle them with ease. So, they should be someone who can handle physical work.
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gluconeogenesis is the conversion of pyruvate to glucose. several cofactors are needed in this metabolic pathway. the overall unbalanced reaction is shown.
The complete equation to produce 1 glucose equivalent:
2Pyruvate + 2NADH + 4ATP + 2GTP ⇒ 1 glucose + 2NAD⁺ + 4ADP + 2PDB + 6P
Gluconeogenesis is the process of synthesizing or making glucose from non-carbohydrate compounds in the body. This process occurs when glucose levels are not available, so the body converts amino acids or glycerol into glucose to then be used as energy for the body.
Glucose will be made from other non-carbohydrate compounds and molecules, such as:
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what are the resources for which weeds compete with turgrasses?
Answer:
Weeds and turfgrass struggle for water, nutrients, and light when they are left unchecked, but weeds win this conflict because they are more aggressive competitors than the majority of turfgrass species. Furthermore, the presence of weed species in turfgrasses lowers the utility, aesthetic value, and playing quality of the grass.
___________________
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Have a great day!
which of the following best explains why sickle-cell disease is a good candidate for studying genetic diseases?
Sickle-cell disease is a good candidate for studying genetic disease because ; to see if gene therapy can improve survival and prevent symptoms and complications associated with sickle cell disease, as well as to weigh the risks of gene therapy against the potential long-term benefits for sickle cell patients.
What is Genetic Disease?
Genetic diseases, also known as genetic disorders, are caused by changes in DNA, which are known as genetic mutations. Changes in the instructions for making a protein are caused by genetic mutations. Genetic mutations cause changes in the instructions for making a protein. These changes can prevent or alter protein function, as well as prevent protein production entirely. Genetic mutations are mostly inherited from our parents, which means that one or both of your parents passed them down to you.
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mitochondrial dna can be used to trace evolutionary history. which statement best describes how it is transmitted in a population?
Mitochondrial DNA (mtDNA) is the right tool for the willpower of the foundation of populations due to its high evolutionary importance. ancient mitochondrial DNA retrieved from museum specimens, archaeological unearths and fossil remains can offer direct evidence for population origins and migration procedures.
They play an essential role in the law of cell metabolism, apoptosis, and oxidative strain control. Mitochondrial DNA (mtDNA) has many special functions such as an excessive replica range in cellular, and maternal inheritance, and a high mutation charge that has made it attractive to scientists from many fields.
The mitochondria DNA is circular and without histone proteins, unlike the DNA present inside the nucleus that is linear and is wound around a histone protein middle. Mitochondrial DNA is a double-stranded molecule. turned into this solution useful.
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The parasympathetic division of the autonomic nervous system is also known as the __________ division.
The craniosacral division of the ANS refers to the central nervous system components of the parasympathetic nervous system, which are found inside the brain and the sacral section of the spinal cord.
The parasympathetic nervous system opposes the sympathetic nervous system, which is engaged under a stressful situation. When cortisol and adrenaline levels fall, the parasympathetic nervous system is stimulated, and the body responds by detoxifying, digesting, and creating immunity.
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the term meaning blood within a joint is
The term meaning blood within a joint is Arthrodesis. It is the surgical immobilization of a joint by fusing bones.
Why surgical intervention is important?It is a very important surgical intervention which is usually used to treat fractures of the joints, arthritis and similar conditions including painful joints which affect joint mobility.
It has become an important alternative for patients living with arthritis. Arthrodesis is the surgical immobilization of a joint by fusing bones. It is a very important surgical intervention which is usually used to treat fractures of the joints, arthritis and similar conditions including painful joints which affect joint mobility.
Therefore, The term meaning blood within a joint is Arthrodesis. It is the surgical immobilization of a joint by fusing bones.
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what interaction is involved in the stimulation of a helper t cell?
Answer:
costimulatory reaction between a signaling protein known as B7
The connection between CD4 and the MHC II protein and the engagement of the T cell receptor with processed antigen.
What is the stimulation of a T cell?A CD4 receptor can be found on the surface of helper T-cells. Major Histocompatibility Complex (MHC) class II molecules and the CD4 receptor interact.
T helper cells are activated by the interaction between T-cell receptors (TCR) and peptide MHC class II molecules (pMHC II),
Which are expressed on the surface of antigen-presenting cells (APCs). such as DCs, mononuclear phagocytes, some endothelial cells, thymic epithelial cells, and B cells.
Therefore, CD4 and the MHC II, interaction is involved in the stimulation of a helper t cell.
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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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A student is studying the effect of testosterone in a specific signal transduction pathway. The student is using a special cell line that only contains testosterone receptors. Unfortunately, the student made an error when culturing the cells and all of the cells died! Thankfully a fellow classmate offered for the student to use their cell line. It is not the same cell line and does not contain the receptors that the student was studying. The student, however, points out that this is fine because there are other receptors that testosterone can bind to. Do you agree with this statement? Why or why not?
If the cell line does not contain the androgen receptors for testosterone this hormone (and related hormones neither) cannot bind to the target cell because the cell doesn't have receptors to bind for such hormone.
What is a hormone cell receptor?A hormone cell receptor is a structure in the cell that binds to hormone ligands depending on the specificity degree of this binding such as occurs in the case of androgen receptors and testosterone.
Therefore, with this data, we can see that hormone cell receptors are highly specific to bind hormone ligands.
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the stable microbes that inhabit the human body on a permanent or long-term basis, and generally do not cause disease, are referred to as
Resident Also called normal or indigenous biota
First, the existence of an indigenous—or residential—microbiota is ancient. Such microbes are found in all animals which can be at the least as complicated as annelids (earthworms); this gives proof for the co-evolution of animals and micro organism for more than 800 million years (Schramm et al, 2003; Savage, 1977).
The indigenous microflora stimulates the host immune system to respond extra speedy to pathogen challenge and, through bacterial antagonism, inhibits colonization of the GI tract with the aid of overt exogenous pathogens.
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order the following structures, from where blood enters the urinary system to the expulsion of urine, to test your understanding of this tract.
The following structures, from where blood enters the urinary system to the expulsion of urine
KidneyUreterBladderUrethraGlomerular filtration, reabsorption, and secretion are the three basic processes in the formation of urine. It is composed of 95% water and 5% wastes such nitrogenous wastes like creatinine, urea, and ammonia, as well as ions like sodium, potassium, and calcium.
The process of keeping the body's equilibrium is called osmoregulation. It keeps the osmotic balance by facilitating the passage of solutes and water across the semi-permeable membrane. Osmoregulation is the mechanism by which the kidney controls the osmotic pressure of blood through filtration and purification.
Hence, urine formation involves filtration and reabsorption
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meiosis i and meiosis ii are very different from one another. can you identify what happens in each?sort each item to the appropriate bin.
The appropriate descriptions of the events in each of the stages of meiosis are:
Meiosis I
Crossing over occurs between the non-sister chromatids of each homologous pairPairs of homologous chromosomes are arranged at the metaphase plateMeiosis II
Breakdown of proteins holding the sister chromatids together at the centromere allows the chromatids to separate and move toward opposite polesIndividual chromosomes line up at the metaphase plateWhat is meiosis?Meiosis is the process of cell division in which the single parent cell produces four daughter cells that have a haploid number of chromosomes, unlike the parent cells that are diploid.
Meiosis occurs in two steps known as meiosis I and meiosis II.
In meiosis I: the number of cells is doubled but the number of chromosomes is not thereby producing haploid daughter cells.
In meiosis II: the number of cells is doubled and the chromosome number is unchanged.
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Complete question:
Meiosis I and meiosis II are very different from one another. Can you identify whether certain events occur in meiosis I or meiosis II? Sort each event to the appropriate bin.
Crossing over occurs between the non-sister chromatids of each homologous pair
Breakdown of proteins holding the sister chromatids together at the centromere allows the chromatids to separate and move toward opposite poles
Pairs of homologous chromosomes are arranged at the metaphase plate
Individual chromosomes line up at the metaphase plate