Assume you have a population with alleles A and a at a genetic locus. You measured the population and found 30 AA homozygotes, 100 Aa heterozygotes, and 70 aa homozygotes. What is the frequency of A and a in the population?   a. A = 0.3; a = 0.7   b. A = 0.7; a = 0.3   c. A = 0.4; a = 0.6   d. A = 0.6; a = 0.4

In a population of 1000 baby kitties, 40 are white because of a recessive allele (b). Non-white cats are either homozygous dominant (BB) or heterozygous dominant (Bb). What is the frequency of heterozygous kitties in the population?A. 0.2B. 0.32C. 0.8Please show all the work!

A hypothetical population was found to have a genotype frequency of AA=20%, Aa=40%, aa=40%.  What genotype is in short supply (that is, in less proportions than equilibrium levels)? a. Aa b. AA C. aa d. none of the above

In a population of 1000 mice, the allele frequency for dominant brown fur is 0.25. The population is in Hardy-Weinberg equilibrium. How many individuals will be heterozygous in the population?      A. 375     B. 625     C. 750     D. 500

The allele frequency of C is 0.4 and c is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of heterozygotes? a. 0.16 c. 0.26 b. 0.24 d. 0.48

Answer the following questions: a. A gene has 2 alleles, R and B. List the possible genotypes. b. If there are 40 individuals in a population and all 40 have the genotype RB, what is the frequency of the R allele? c. If there are 40 individuals in a population and 10 are RR, 20 are RB, and 10 BB, what is the frequency of the R allele? d. If there are 40 individuals in a population and 10 are RR, 10 are RB, and 20 BB, what is the frequency of the R allele?

In achondroplastic dwarfism, an autosomal dominant disease, the gene is lethal in homozygotes. If the frequency of the normal allele is 0.99, what is the heterozygote frequency? a. 0.01 b. 0.02 c. 0.98 d. 0.99       An autosomal recessive gene is lethal in homozygotes. In a population at Hardy- Weinberg equilibrium, how many generations will it take to eliminate the gene from the population a.100 b.It will not be eliminated from the population. c.1 d.25

A wildflower normally bears blue flowers. Occasionally, plants with pink flowers are observed in wild populations. Flower color is controlled at a single locus, with the pink allele completely recessive to the blue allele. In one population, 25 pink flowers and 3291 blue flowers were found. a. Calculate the expected allele frequencies and genotype frequencies if the population were in HWE. b. The mean # of pods of these plants were examined. Assume that heterozygotes are as fit as homozygous blue, and that seeds from both pink and blue all suffer about the same mortality rate after germinating. Calculate the relative fitness of each genotype. c. Predict quantitatively the effect of natural selection on the frequencies of phenotypes in the next generation. Blue: mean # of plants: 19.33 # of plants: 39 Pink: mean # of plants: 13.08 # of plants: 24

There is a population with two alleles (B and b) at a locus. There are 25 BB homozygotes, 35 Bb heterozygotes, and 40 bb homozygotes. Is this population in Hardy Weinberg equilibrium?   a. Yes   b. No   c. Not enough information to tell   d. Only in the current generation

There is a population of cats and 16% of the cats this population show a recessive trait. a. What is the frequency of the recessive allele? b.  What is the frequency of the dominant genotype?  c.  What is the frequency of cats with the heterozygous genotype?