#Question id: 3371
#Unit 11. Evolution and Behavior
If a given gene in a randomly mating population has three alleles a, b and c in the ratio of 0.6, 0.3 and 0.1 respectively, what is the expected frequency of all heterozygote?
#Question id: 3372
#Unit 11. Evolution and Behavior
Fish, penguin and Dolphin are independently evolved similar traits as a result of having to adapt to similar environments or ecological niches.
A. On a molecular level, this can happen due to random mutation in unrelated taxon to adaptive changes
B. This is the example of divergent evolution, occurred due to similar group of organisms inhabiting different environments
C. Similar phenotype are produced by identical change in orthologous gene
D. This is the example of convergent evolution, occurred due to similar group of organisms inhabiting different environments
Which of the following is the correct combination?
#Question id: 3373
#Unit 11. Evolution and Behavior
Which of the following is correct statement?
A. Reproduction alone does not alter allelic or genotypic frequencies from generation to generation
B. Frequency of the heterozygote is always greatest when allelic frequencies are range between .33 and .66
C. Inbreeding is more likely to take place in nature when population size becomes very small and the number of mates is limited.
D. The movement of a few individuals between populations can counteract the effects of genetic drift
#Question id: 3374
#Unit 11. Evolution and Behavior
Consider an autosomal locus with two alleles A1 and A2 at frequencies of 0.6 and 0.4 respectively. Each generation, A1 mutates to A2 at a rate of μ = 1 x 10-2 while A2 mutates to A1 at a rate of υ = 1 x 10-1) Assume that the population is infinitely large and no other evolutionary force is acting. The overall change in allelic frequency will be
#Question id: 3375
#Unit 11. Evolution and Behavior
Evolutionary force | Caused | ||
A | Mutation | i | Increase genetic variation within population |
B | Genetic Drift | ii | Decrease genetic variation within population |
C | Migration | iii | Decrease genetic variation between population |
iv | Increase genetic variation between population |
Which of the following combination is correct?
#Question id: 3376
#Unit 11. Evolution and Behavior
The frequencies of two allele’s p and q for a gene locus in a population at Hardy-Weinberg equilibrium are 0.6 and 0.4, respectively. After a few generations of inbreeding, the heterozygote frequency was found to be 0.10, The inbreeding coefficient in this case is