Asked Jan 27, 2020

A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1 A2 genotype, and 123 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.


Expert Answer

Step 1

The Hardy–Weinberg principle:

It is also referred to as the Hardy–Weinberg model, equilibrium, law, or theorem. It states that the genotype and allele frequencies will remain constant in a population from generation to generation in the lack of other evolutionary impacts.

Step 2

The Hardy Weinberg equations are placed on the board:

From the given details:

p2 denotes the frequency of A1A1 genotype (77 individuals).

q2 denotes the frequency of A2A2 genotype (123 individuals).

2pq denotes the frequency of A1A2 genotype (65 individuals).

p represents the frequency of A1 allele and q represents the frequency of allele A2.

Biology homework question answer, step 2, image 1
Step 3

The allele A1 frequency can be calculated as follows:

The total number of individuals of the populatio...

Biology homework question answer, step 3, image 1

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Related Biology Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Can you please answer 31

A: Answer 31: Mutation is any alteration in the gene that may be caused due to deletion, addition or ch...


Q: What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?

A: An atom is the smallest unit of any matter. This means that all gases, solids, liquids, and plasmas ...



A: Click to see the answer


Q: Can you please do question 9,10, and 11

A: Hey, since there are multiple questions posted, we are answering the first one. If you want any spec...


Q: Can you please answer this question

A: DNA is a nucleic acid which possess the information which determines the characteristics of an organ...


Q: Choose ONE of the following macromolecules: lipids (membrane), DNA (genes) or protein. Then, explain...

A: Free radicals are molecular species which contain an unpaired electron. Consequently, they are some ...


Q: Describe three interesting ways relate chemistry to biochemistry and the human body.

A: Chemistry is the study of elements and compounds formed of atoms, molecules, and ions. It includes t...


Q: 12) Draw a yeast knockout cassette. Label all required sequence features.  a) Draw the target chromo...

A: Hi! It seems you have posted multiple questions and asked to provide with two knockout diagrams, we ...


Q: Parathyroid Hormone - For the hormone . Parathyroid Hormone (in humans) what is; 1. the origin (glan...

A: Click to see the answer