#Question id: 3423
#Unit 11. Evolution and Behavior
Following statement regarding divergent evolution?
A- Spreading of same species to different and isolated environments which blocks the gene flow among the distinct populations
B. vertebrate limb of whale and elephant is one example of divergent evolution
C- Both orthologous genes and paralogous genes can be said to display divergent evolution
D- Sympatric speciation leads to divergence of one species in to two are more descendant species
Which of the following combination of above statement are correct?
#Question id: 3424
#Unit 11. Evolution and Behavior
Which of the following statement is correct?
A. Darwin, theory of natural selection based on better-adapted organisms would acquire more resources and leave more offspring.
B. When population sizes become too small, individuals accumulate deleterious (harmful) mutations, and survival of offspring is threatened
C. Inbreeding is more likely to take place in nature when population size becomes very small and the number of mates is limited.
D. Effective population size can be reduced by harem mating structures
E. The movement of a few individuals between populations can counteract the effects of genetic drift
#Question id: 3425
#Unit 11. Evolution and Behavior
Many evolutionary forces are operating in population. In study, within population increase genetic variation due to -----A-----while decrease genetic variation due to ------B-----. Between populations increase genetic variation due to -----C-----while decrease genetic variation due to ------D-----.
#Question id: 3426
#Unit 11. Evolution and Behavior
Fitness of three different genotypes is given in population I and II, under natural selection which of the following statement are correct?
#Question id: 3427
#Unit 11. Evolution and Behavior
Natural selection can alter the frequency of distribution allele and heritable trait in different following way
A- Accumulation of those mutation that increase fitness of population in changing environment
B- Check accumulation of mutation that lower the fitness of species in unchanging environment
c- occur when population is subjected to divergent selection
#Question id: 3428
#Unit 11. Evolution and Behavior
In a sample from an African population, the frequency of blood group allele IA, IB and IO were 0.30, 0.20 and 0.50 respectively. What is expected frequency of A and B blood group respectively when population size 1000?