During the epinephrine stimulated conversion of glycogen to glucose 1-phosphate, which of the following steps involves protein phosphorylation?

a. inactivation of glycogen synthase               b. activation of protein kinase A

c. activation of adenylyl cyclise                      d. activation of glycogen phosphorylase

#Question id: 3279

#Unit 9. Evolution & Diversity of Life Forms

Which two of the following have operated to increase divergence between mosquito fish populations on island?

a. improved gene flow

b. bottleneck effect

c. sexual selection

d. founder effect

e. natural selection

#Question id: 3280

#Unit 9. Evolution & Diversity of Life Forms

Small populations are threatened by the loss of genetic diversity from

a. Inbreeding

b. Genetic drift

c. Limited mating

#Question id: 3281

#Unit 9. Evolution & Diversity of Life Forms

One population X has 750 AA, 0 Aa, and 250 aa; the other Y has 500 AA, 500 Aa, and 0 aa. After one generation of random mating, the genotype frequencies X and Y respectively if the population size remains 1,000.

#Question id: 3282

#Unit 9. Evolution & Diversity of Life Forms

Natural selection results in different forms of plants which can survive in contaminated or uncontaminated soil. Type of natural selection is

#Question id: 3283

#Unit 9. Evolution & Diversity of Life Forms

if the forward ( p in to q) and reverse ( q in to p) mutation rates for alleles at a locus are 1×10−1 and 1×10−2 per generation, respectively and the allelic frequencies are p = 0.20 and q = 0.80. if you assuming random matting population. Which of the following observation correct?

#Question id: 3284

#Unit 9. Evolution & Diversity of Life Forms

The fitness of three genotype are A1A1 < A1A2 = A2A2) Which of the following observation correct?