#Question id: 3375
#Unit 9. Evolution & Diversity of Life Forms
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: 5875
#Unit 9. Evolution & Diversity of Life Forms
According to fossil record, the earliest fossils of liverworts are found in late Devonian, of mosses in early cretaceous, and vascular plants in the later Silurian/early Devonian. Anthoceros (hornworts) fossils have not been recovered. Reading fossil recores we would say that vascular plants appeared first and then liverworts.
However phylogenetic relationship (shown in figure) suggest otherwise. It may be that
(A) evolutionary history can be read directly from fossil record
(B) The moss lineage goes back to at least early Silurian/early Devonian
(C) Fossil can only set a maximum age for a lineage
(D) Fossil can only sets a minimum age for a lineage
(E) the divergence between liverworts and rest of land plants goes back to at least early Ordovician
Which of the following statements is correct?
#Question id: 31695
#Unit 9. Evolution & Diversity of Life Forms
Consider the following figure of sequence divergence over time. The dashed and solid lines represent synonymous and non-synonymous substitutions, respectively. Which one or more of the following does the figure support?
#Question id: 3216
#Unit 9. Evolution & Diversity of Life Forms
The frequency of galactosemia is approximately 1 in 40,000 live births. The frequency of the carrier state can be calculated as
#Question id: 3250
#Unit 9. Evolution & Diversity of Life Forms
Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1, A1A2 and A2A2 genotype is 0.01, 0.18 and 0.81) Which of the following statement is correct?
#Question id: 3251
#Unit 9. Evolution & Diversity of Life Forms
Looking at 3 allele per locus and following Hardy Weinberg equilibrium what will be the expected heterozygosity if q1=0.5, q2=0.3, q3=0.2
