1. Forty-five percent of the alleles in a population are recessive. What percent of the alleles will be dominant?
2. Seventy percent of the individuals in a population have the dominant A allele for a given trait. Thirty percent have both recessive alleles, aa. What percent of the population are:
A. Homozygous recessive?______________
B. Carriers?__________________________
C. Homozygous dominant?______________
3. About 18/1000 White Americans are resistant to AIDS because they have the cc gene that makes abnormal receptors the AIDS virus needs to attach to cells. What percent of the population are:
A. AIDS resistance?________________
B. Carriers for AIDS resistance?______
C. Normal (not carriers)?____________
4. PKU occurs in about 1 in 2,600 births in Turkey. What percent of the population are:
A. PKU victims?__________
B. Carriers?______________
C. Normal (not carriers)?____
| Answers | Population Genetics |