{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ClickerQ3-4_2011

ClickerQ3-4_2011 - In-class questions weeks 3-4 Population...

This preview shows pages 1–4. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: In-class questions weeks 3-4 Population Genetics1) Why is the Hardy-Weinberg principle useful to biologists? 1. It allows biologists to determine genotype frequencies from phenotype frequencies. 2. It explains how evolution occurs at the population level. 3. It functions as a null hypothesis when testing for evolution in populations. 4. It explains how random chance mathematically affects evolution. 2) Each circle represents a diploid individual in an imaginary population. What are the genotype and allele frequencies? 1. AA=0.6, Aa=0; aa=0.4. A=0.6, a=0.4. 2. AA=6; Aa=0; aa=4. A=6, a=4. 3. AA=0.6, Aa=0; aa=0.4. A=0.5, a=0.5. 4. AA=0.33; Aa=0.33; aa=0.33. A=0.5,a=0.5 3) You have previously determined that this population has genotype frequencies of AA=0.6, Aa=0; aa=0.4 and allele frequencies of A=0.6 and a=0.4. Is it in HW equilibrium? What are the equilibrium genotype frequencies? 1. Yes. AA=0.36, Aa=0.48, aa=0.16. 2. Yes. AA=0.6, Aa=0; aa=0.4 . 3. No. AA=0.36, Aa=0.48, aa=0.16. 4. No. AA=0.33, Aa=0.33, aa=0.33. AA aa aa AA AA AA aaaa AA AA 4) Each circle represents a diploid individual in an imaginary population. What are the genotype and allele frequencies? 1.AA=0.33; Aa=0.33; aa=0.33. A=0.5,a=0.5 2.AA=7; Aa=0; aa=3. A=7, a=3. 3.AA=0.7, Aa=0; aa=0.3. A=0.5, a=0.5. 4.AA=0.7, Aa=0; aa=0.3. A=0.7, a=0.3 5) You have previously determined that this population has genotype frequencies of AA=0.7, Aa=0; aa=0.3 and allele frequencies of A=0.7 and a=0.3. What are the equilibrium (expected) genotype frequencies? Is it in HW equilibrium? 1.Yes. AA=0.49, Aa=0.42, aa=0.09. 2.Yes. AA=0.7, Aa=0; aa=0.3 . 3.No. AA=0.49, Aa=0.42, aa=0.09. 4.No. AA=0.33, Aa=0.33, aa=0.33. Evolutionary forces: 1) In 1986 a nuclear power accident in Chernobyl led to high radiation levels for miles surrounding the plant, causing elevated mutation rates in the surviving...
View Full Document

{[ snackBarMessage ]}

Page1 / 5

ClickerQ3-4_2011 - In-class questions weeks 3-4 Population...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online