1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilia_Sergeevich [38]
3 years ago
10

For a pair of genes with alleles: A (dominant) a (recessive) at the first locus; and B (dominant) b (recessive) at the second lo

cus, that operate in a duplicate dominant epistatic manner, what proportion of offspring from a doubly-heterozygous mating are expected to show the recessive phenotype? A. 0.5. B. 1 (it's dominant). C. 15/16. D. 9/16. E. 1/16.
Biology
1 answer:
Harlamova29_29 [7]3 years ago
8 0

Answer:

E. 1/16

Explanation:

In a duplicate dominant epistasis, when one locus presents a dominant genotype and the other presents a recessive genotype, the dominant one hides the effective of the recessive gene. Therefore, a recessive phenotype will only be observed when both genes are recessive homozygous (aabb).

Assuming a doubly-heterozygous mating (AaBb x AaBb), the probability that both genes are recessive homozygous is:

P=\frac{1}{2}*\frac{1}{2}*\frac{1}{2}*\frac{1}{2}\\P =\frac{1}{16}

1/16 of offspring are expected to show the recessive phenotype.

You might be interested in
Which of the following is not a way Science influence society
Solnce55 [7]
You forgot to include the following choices but no worries I did this question before and the answers are: 

advances in technology

increases understanding on environment

etc
4 0
3 years ago
All of the following statements are True EXCEPT 2,3-bisphosphoglycerate decreases the affinity of hemoglobin for oxygen. hemoglo
Vedmedyk [2.9K]

Answer:

hemoglobin will bind more oxygen when the partial pressure is low than when the partial pressure is high.

Explanation:

Binding of hemoglobin to oxygen is regulated by several factors. However, the partial pressure of oxygen is the most important factor that determines how much oxygen will bind to hemoglobin. When the partial pressure of O2 is high, hemoglobin binds with large amounts of O2. On the other hand, when the partial pressure of O2 is low, hemoglobin is only partially saturated.

Therefore, the greater the partial pressure of oxygen, the more O2 will bind to hemoglobin until saturation is reached. This is why a lot of O2 binds to hemoglobin in pulmonary capillaries where the partial pressure of oxygen is high.

6 0
3 years ago
Pluto has a shape that is nearly round, and it orbits the Sun. It has five known moons. Why is it called a dwarf planet and not
TEA [102]

C. is the answer to the question

6 0
3 years ago
Help please
photoshop1234 [79]
The answer is C because the independent variable is what you change in the experiment and you are changing the concentration of sugar
8 0
3 years ago
Read 2 more answers
Create a “why” type of questions that relate to the interactions of the four subsystem of the earth.
guajiro [1.7K]

1. Why hydrosphere is important for the living organisms?

2. Why atmosphere is important for the living organisms?

3. Why lithosphere is important for the living organisms?

4. Why biosphere is important for the living organisms?

These are the four questions related to the subsystem of the earth. There are four subsystem of the earth named "lithosphere" which means the land, "hydrosphere" which means water, "biosphere" which means living things and "atmosphere" which means air.

All these subsystems are important for the survival of living creatures on the planet earth because all living organisms depends on these four subsystem.

Learn more: brainly.com/question/24579841

3 0
2 years ago
Other questions:
  • Which of the following is something a scientist might do to practice science safety? (1 point)
    7·1 answer
  • Why were Archaea and Bacteria grouped together by biologists until recently?
    11·2 answers
  • How are electrons responsible for magnetism?
    6·1 answer
  • What is Chromatid?<br> what is genome?
    5·2 answers
  • PLS HELP! WILL GIVE BRAINLIST!
    8·1 answer
  • Which kind of organism is an autotroph? consumer producer decomposer herbivore
    10·2 answers
  • Which is not involved in non specific defense mechanism
    8·1 answer
  • Which reaction is responsible for the production of lipids, when glycerol is joined to three fatty acids? A) dehydration B) hydr
    7·1 answer
  • By substitution, justify that x= − 6 is a solution to x − 2 = − x − 14
    9·1 answer
  • Consider the phylogenetic tree.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!