Cross two heterozygous black mice and tell the possible phenotypes and
genotypes in their offspring.
Answers
Answer:
Phenotype: 3 black mice: 1 brown mice
Genotype: 1 BB: 2Bb: 1bb
Explanation:
This question involves a single gene coding for fur color in mice. The allele for black color (B) is dominant over the allele for brown mice (b). This means that a mouse that is heterozygous will be black.
If two heterozygous black parents are crossed i.e Bb × Bb, the gametes produced by each parent are: B and b. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
BB, Bb, Bb, and bb
- The phenotypes of this cross is 3 black mice: 1 brown mice
- The genotypes of the cross is 1 BB: 2Bb: 1bb
Related Questions
8. Which of the following is a polysaccharide?
sucrose
cellulose
fructose
glucose
Answers
Answer:
Cellulose i think?
Explanation:
Answer: Glucose
Explanation: Glycogen is a large, branched polysaccharide that is the main storage form of glucose in animals and humans. Glycogen is as an important energy reservoir; when energy is required by the body, glycogen in broken down to glucose, which then enters the glycolytic or pentose phosphate pathway or is released into the bloodstream. Glycogen is also an important form of glucose storage in fungi and bacteria.
please help me...
.........
Answers
Answer:
1. Ribosomes
10. Osmosis
11. Cell membrane
12. Solvent
13. Cytoplasm
15. Organ
16. Permeable
17. Specialized cells
18. Solute
19. Active transport
2. Electron microscope
3. Organelles
4. Mitochondria
5. An Organ system
6. Optical microscope
7. Tissue
8. Concentration gradient
9. Nucleus
14. Diffusion
HELPPPP pls I need answer fast like flash
Answers
Answer:
and im here hi
Explanation:
was i fast enough?
Help (will give crown for answer)
Answers
Answer:genes
Explanation:
What is the first component of the naturally occurring CRISPR system?
Answers
Answer:
Crispr cas9 Basics
Explanation:
Please help It is making me cry
Answers
Answer:
What are you supossed to be doing
Explanation:
Answer:
Can you give me the answers?
Explanation:
plz help its for a big grade
needs at least (10 sentences)!!!!!
Answers
Answer:
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
Atom: has equal number of +ve charge (protons) and -ve charge electrons and hence atom has charge.
Neutrons (having no charge) and protons are present in nucleus. Electrons keep revolving around the nucleus in different shells.
Can you list some facts about Food webs.
Answers
Answer:
A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.
Explanation: A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
Weather balloons are sent into the atmosphere to record: (Select all that apply)
humidity
temperature
wind
pressure
precipitation
Answers
Answer:
temperature pressure moisture
Explanation:
From my notes hope this helps.
Answer:
temperature pressure moisture
Explanation:
According to the base-pairing rules for DNA, which of the following statements
NOT true?
A always pairs with T
C always pairs with G
T always pairs with G
T always pairs with A
Answers
Answer:
T always pairs with A
Explanation:
I think so I'm super sorry if its wrong :)
According to the base pairing rule, guanine always forms a bond with cytosine, while adenine always pairs with thymine, T is not paired with G, hence option C is correct.
What is base-pairing in DNA?Because it is RNA, there is no complementary base pairing between the bases adenine and thymine in DNA. Uracil, which has a structure remarkably similar to that of thymine, is present in place of thymine.
Base pairing rule, guanine always forms a bond with cytosine, while adenine always pairs with thymine structure of DNA is created by the binding of these base pairs
Although they keep the two strands of DNA together, they are not strong enough to withstand replication.
Therefore, the base pairing rule, guanine always forms a bond with cytosine, while adenine always pairs with thymine, hence option C is correct.
Learn more about DNA, here:
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As DNA is unzipping this enzyme comes in and begins synthesizing mRNA
A. RNA primase
B. RNA polymerase
C. DNA primase
D. DNA polymerase
Answers
Why? - RNA polymerase, an enzyme in the cell, is responsible for creating mRNA from the correct gene. RNA polymerase is similar to DNA polymerase, but it makes an RNA strand rather than a DNA strand. RNA polymerase attaches to the promoter region of a DNA helix.
Which organelle is generally larger in plant cells than in animal cells?
A mitochondrion
B. nucleus
C. ribosome
D. vacuole
Answers
Answer:
D.VACUOLE
Explanation:
All of the images below were taken using a microscope. Which of these photos shows cells?
Image by Umberto Salvagnin
COMPLETE
Answers
Answer:
It is all of them
Explanation:
just did it on edge!
Answer:
A,B,C
Explanation:
I got it right.
Why are the best index fossils from species that only existed for a short period of time ?
Answers
Answer:
Because once they were very common they disappeared after the mass extinction event. ... Many geologic periods were defined by events that made natural boundary to the period.
Answer: Because once they were very common they disappeared after the mass extinction event.
Explanation: Hope this helppssss!!! :)
The activity for Enzyme A and Enzyme B are displayed on the graph below. Enzyme A is found in thestomach and Enzyme B is found in the intestinal tract of some animals.
What is the probable pH of the stomach?
F. 1
G. 2
H. 3
J. 4
Answers
Answer:
3
Explanation:
the probable pH of the stomach is around 3
Answer:
H. 3
Explanation:
The probable pH of the stomach is 3.
Bromine is a liquid at room temperature. The volume of a sample of bromine is measured in a 50 ml beaker and a 100 ml beaker. How will the two
measurements compare?
A. The volume of bromine will be larger in the 100ml beaker.
B. The volume of bromine will be smaller in the 50ml beaker,
C. The volumes will be the same.
D. Both A and B
Answers
The actual volume of bromine in each beaker will be same only the difference in height will be comparable. Therefore, option (C) is correct.
What are the properties of liquid ?A liquid's attributes are;
1) Compared to the volume occupied by a gas, the volume of a liquid is relatively stable at conditions that allow it to remain in the liquid state.
2) A liquid will take the form of the container it is placed in.
3) A liquid's surface in a container must be flat for the attraction forces between its molecules to be in equilibrium both at the liquid's surface and within its body.
Therefore, there will be variations in the measured height of the same volume of bromine in each beaker given that the volume of the bromine is measured in a 50 ml beaker and a 100 ml beaker.
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what are the helpful measures to conserve human energy??
Answers
Answer:
Adjust your day-to-day behaviors
Energy conservation can be as simple as turning off lights or appliances when you do not need them. You can also use energy-intensive appliances less by performing household tasks manually, such as hang-drying your clothes instead of putting them in the dryer, or washing dishes by hand.
En un cruce entre peces naranjas y peces grises se obtiene una generación (f1) de 50% peces grises . Realice el cruce y explique lo ocurrido dato: el color naranja es dominante sobre el color gris
Answers
Answer:
Uno de los progenitores es heterocigoto para color naranja (Nn) y el otro parental es homocigoto recesivo para gris (nn). Al haber una cruza entre un homocigoto recesivo y un heterocigoto, la 50% de la progenie expresa color naranja (Nn), mientras que el otro 50% expresa color gris (nn).
Explanation:
Datos disponibles:
Cruce entre peces naranjas y peces grises50% de la F1 son peces grisesNaranja dominante sobre grisPodemos nombrar el alelo dominante para color naranja N, y al alelo recesivo para color gris n.
Para que en un cruce entre dos fenotipos distintos, el 50% de la primer camada exprese uno de estos fenotipos, entonces uno de los parentales debe ser heterocigoto, mientras que el otro parental debe ser homocigoto recesivo. De esta forma 50% de la primera generación expresara uno de los fenotipos, mientras que el otro 50% expresará el otro fenotipo.
Supongamos que uno de los parentales lleva el genotipo Nn, y el otro parental es nn.
Cruce:
Parental) Nn x nn
Gametas) N n n n
Fenotipos) Naranja Gris
Cuadro de Punnett) N n
n Nn nn
n Nn nn
F1) 2/4 = 1/2 = 50% de la progenie tendrá genotipo heterocigoto, Nn
2/4 = 1/2 = 50% de la progenie tendrá genotipo homocigota recesivo,
nn
50% de la progenie será color naranja (Nn)
50% de la progenie será color gris (nn)
Where are most mountains on Earth fomed?
Answers
Answer:
asia
Explanation:
Answer:
Mountains are most often formed by movement of the tectonic plates in the Earth's crust. Great mountain ranges like the Himalayas often form along the boundaries of these plates. Tectonic plates move very slowly.
Explanation:
The answers to these questions ?
Answers
Answer:
1. Lactose, H2O, and lactase.
2. Galactose and glucose.
3. You converted lactose, H2O, and lactase into galactose and glucose.
Explanation:
I don't know about the last one so I would do that one yourself because we can't see what the reaction was from.
Which researcher theorized that hypnosis comes about as a form of roleplay between hypnotist and subject?
A. Ernest Hilgard
B. Theodore Sarbin
C. Theodore Barber
D. Milton Erickson
Please select the best answer from the choices provided
А
B
Ο Ο Ο Ο
С
D
Save and Exit
Next
Submit
Mark this and return
Answers
Answer:
D. Milton Erickson
Explanation:
Just took the test! Please mark me the Brainliest! peace and love
Milton Erickson is the researcher who theorized the hypnosis that comes out form the roleplay of the hypnotist and subject.
He has dedicated his life to the field of hypnotism and is committed to scientific methodology.
He was one to specialize in hypnosis and family therapy.He is noted for his approaches in the uncoinsuous mind.Hence the option D is correct.Learn more about the that hypnosis comes about as a form.
brainly.com/question/25612112.
Condensation occurs in clouds. Explain how and then explain what happens with the clouds gain too
much condensation
Answers
Multicellular organisms contain organ systems. Which of the following BEST describes the organs in an organ system?
о A. The organs in an organ system are made up of similar cells.
O
B. The organs in an organ system are made up of similar tissues.
C. The organs in an organ system work together to perform a specific function.
O
D. The organs in an organ system work together to perform all the functions a multicellular organism needs to maintain homeostasis.
Answers
Answer:
C. The organs in an organ system work together to perform a specific function.
Explanation:
The definition of an organ system is a "group of organs that work together as a biological system to perform one or more functions". Each organ in a system does a different job in order to achieve the same goal. For example, the stomach breaks down food, and the intestines gather nutrients but the goal of both is to digest food.
Condensation: the ______ off of ______ in the air in the ______
Answers
please help its due in a hour!!!!!
Answers
Answer:
1. The difference between the normal hemoglobin protein DNA sequence and the sickle cell hemoglobin DNA sequence is a base to base shift, in this case adenine (GAG) to thymine (GTG).
2. The difference affects the amino acid sequence of the protein by replacing glutamic acid (Glu) with valine (Val).
Explanation:
In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the amino acid sequence of globine β, incorporating valine instead of glutamic acid. This represents a molecular mutation - point mutation - by subtitution, which corresponds to missense mutation.
Normal hemoglobin protein in a RBC
DNA CTG ACT CCT GAG GAG AAG TCT
Amino acids Leu Thr Pro Glu Glu Lys Ser
Sickle cell hemoglobin protein in a RBC
DNA CTG ACT CCT GTG GAG AAG TCT
Amino acids Leu Thr Pro Val Glu Lys Ser
When GAG is transcribed to mRNA, the CUC codon is obtained, which codes for glutamic acid. Thymine substitution causes the DNA sequence to change to GTG, which is transcribed as CAC, the codon that encodes the amino acid valine. The change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease.
Scientists are studying the bacteria living in termites because they want to
genetically engineer......
Bacteria that can resist pests on crops.
Bacteria that can create ethanol from left over plant material.
Bacteria that create a vaccine.
Bacteria that create antibiotics.
Answers
Answer:
B. this is why Those bacteria may contain genes that will help convert plant material to ethanol. so B. and if it's wrong then sorry but if it's right u welcome ;)
Bacteria that can resist pests on crops.
The following information should be considered:
In the case when the scientist should studying the bacteria that lived the termites so it should resisted the pest on the crops. These kind of bacterias should comprise of genes that would helps transform plant material to ethanol.Learn more: https://brainly.com/question/5303391?referrer=searchResults
100 POINTS!!!! I WILL GIVE BRAINLIEST TO WHO ANSWERS CORRECTLY!!!!!!!!!!!!
Please give a food web for a blue viper
Answers
Answer:
i think mice
Explanation:
please give brainliest
As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become Or This means they will turn Genes for the type of cell they are becoming, and turn Genes for the type of cell they won't be.
Answers
Answer:
differentiated; on; off
Explanation:
As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become differentiated Or This means they will turn Genes on for the type of cell they are becoming, and turn Genes off for the type of cell they won't be.
Stem cells become specialized cells through the process of differentiation. The stem cells all have identical DNA in them. They become specialized for a particular function (s) through the process of differentiation. During this process, some specific genes are either turned on or off. Cells in which the same genes are expressed become specialized for similar functions and can then come together to form a tissue.
Crossing over occurs during meiosis and leads to changes in the chromosomes. What type of chromosomes does crossing over produce?
1. Chromosomes containing DNA from two different parental chromosomes
2. Chromosomes identical in genetic makeup to the parental chromosomes
3. Chromosomes containing more genes with non recombinant chromosomes
4. Chromosomes carrying genes from one parent
Answers
Answer:
1.
Explanation:
because the DNA is being mixed up while crossing over
Crossing over occurs during meiosis and leads to chromosomes containing DNA from two different parental chromosomes, hence option 1 is correct.
What is meiosis?New allelic combinations are created in the daughter cells as a result of the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis.
Homologous chromosomes couple along their lengths during meiosis, one from each parent. At locations known as chiasma, the chromosomes overlap.
The chromosomes split and reunite at each chiasma, exchanging part of their genes in the process. Genetic diversity comes from this recombination.
Therefore, the genetic complement in each daughter cell at the end of meiosis is best described as a haploid set of chromosomes resulting from chromosomal recombination between the parents.
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What is the chloroplast?
Answers
where photosynthesis takes place
