SUPA_Ch 23 Natural Selection, Movement of Alleles, Sexual Selection

In a population of humans, the frequency of no dimples is 0.36. If having no dimples is the recessive phenotype, what is the frequency of the recessive allele?

• 0.6
• 0.36
• 0.64
• 0.18

Tags

NGSS.HS-LS3-3

In a population of bears, the frequency of q is 0.44. What is the frequency of p?

• 0.1936
• 0.44
• 0.56
• 0.22

In the Hardy-Weinberg Equation, q² is the frequency of what?

• The recessive allele 
• the dominant allele
• the recessive genotype
• the dominant genotype

If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population would you predict would be heterozygous?

• 70%

• 30%

• 42%

• 49%

What does the variable q represent?

• Frequency of the heterozygote genotype
• Frequency of the homozygous recessive genotype
• The frequency of the recessive allele
• The frequency of the dominant allele 

Which Hardy-Weinberg equation represents the genotype frequencies in a population?

• p + q = 1
• p2 + 2pq + q2 = 1
• p2 + pq2 + q2 = 1
• p + 2pq + q3 = 1

Which Hardy-Weinberg factor represents the frequency of heterozygous individuals in a population?

• p2
• 2pq
• q2
• p2 + 2pq

If a population has the following genotype frequencies: AA = 0.42, Aa = 0.46, and aa = 0.12, what are the allele frequencies?

• A = 0.42, a = 0.12
• A = 0.6, a = 0.4
• A = 0.65, a = 0.35
• A = 0.84, a = 0.24

Within a population of 500 butterflies, the color purple is dominant over the color white.  200 of the butterflies are white.  What is the frequency of homozygous dominant individuals?  Give your answer as a decimal to the nearest hundredth.

• .40
• .36
• .16
• .60

A population of 150 individuals has an allele frequency of 0.3 for the dominant allele (B) and a frequency of 0.7 for the recessive allele (b). Use the Hardy-Weinberg equation to determine the frequency of the homozygous genotype (bb).

• 0.09

• 0.42

• 0.49

• 0.21