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Genetics

Study Pack

Set 21 Population Genetics And Evolution At The Population Species And Molecular Levels

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Question 1

(Multiple Choice)

Free
If the frequencies of two alleles in a population are 0.1 and 0.2, what is the chance that an individual randomly chosen from this population is heterozygous for these two alleles?

A) 0.1 + 0.2 = 30%
B) 0.1 * 0.1 = 1%
C) 0.1 * 0.2 = 2%
D) 2 * 0.1 + 0.2 = 60%
E) 2 * 0.1 * 0.2 = 4%

Answer

Question 2

(Multiple Choice)

Free
The Paternity Index (PI) is calculated by dividing ___________by_________ .

A) the probability that the putative father is the real father; the probability that putative father is not the real father
B) the probability that the nonmaternal allele comes from the putative father; the probability that the allele comes from another male in the population
C) the probability that the nonmaternal allele comes from a random male; the probability that the allele comes from another male in the father's population
D) the probability that the childs allele comes from the mother; the probability that the childs allele comes from the father
E) the probability putative father has the child's allele; the probability that the allele comes from another male in the population

Answer

Question 3

(Multiple Choice)

Free
First- degree relatives share 50% of their alleles, second- degree relatives share 25% of their alleles, and third- degree relatives share 12.5% of their alleles. Which of the following are third degree relatives?

A) grandparents of an individual
B) parents and their children
C) siblings
D) the aunts or uncles of an individual
E) none of these relationships is third- degree

Answer