A hypothetical population has two alleles for an "A" gene: A1 and A2. The allele frequencies of the population were determined to be 70% A1 and 30% A2. What is the expected (predicted) frequency of zygotes with the A2A2 genotype (q2) if the population is at Hardy-Weinberg equilibrium? O A. 0.42 O B. 0.49 O C.0.21 O D.0.09

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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### Question 3

A hypothetical population has two alleles for an “A” gene: **A₁** and **A₂**. The allele frequencies of the population were determined to be 70% **A₁** and 30% **A₂**.

**What is the expected (predicted) frequency of zygotes with the A₂A₂ genotype (q²) if the population is at Hardy-Weinberg equilibrium?**

- A. 0.42
- B. 0.49
- C. 0.21
- D. 0.09

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### Question 4

A hypothetical population has two alleles for an “A” gene: **A₁** and **A₂**. The allele frequencies of the population were determined to be 70% **A₁** and 30% **A₂**.

Geneticists collected DNA samples from 1,000 individuals within the population and found the actual (observed) genotype frequencies of the population to be: 22% **A₁A₁**, 59% **A₁A₂**, and 19% **A₂A₂**.

**Is this population actually in Hardy-Weinberg equilibrium?** (Note: if the actual/observed genotype frequencies are fairly close - within 5 or 10% of the expected/predicted frequencies, then consider them equal)

- A. Yes
- B. No
Transcribed Image Text:### Question 3 A hypothetical population has two alleles for an “A” gene: **A₁** and **A₂**. The allele frequencies of the population were determined to be 70% **A₁** and 30% **A₂**. **What is the expected (predicted) frequency of zygotes with the A₂A₂ genotype (q²) if the population is at Hardy-Weinberg equilibrium?** - A. 0.42 - B. 0.49 - C. 0.21 - D. 0.09 --- ### Question 4 A hypothetical population has two alleles for an “A” gene: **A₁** and **A₂**. The allele frequencies of the population were determined to be 70% **A₁** and 30% **A₂**. Geneticists collected DNA samples from 1,000 individuals within the population and found the actual (observed) genotype frequencies of the population to be: 22% **A₁A₁**, 59% **A₁A₂**, and 19% **A₂A₂**. **Is this population actually in Hardy-Weinberg equilibrium?** (Note: if the actual/observed genotype frequencies are fairly close - within 5 or 10% of the expected/predicted frequencies, then consider them equal) - A. Yes - B. No
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