Choose the true statement about the role of polyploidization in the evolution of plant genomes.
A. Crop plants rarely show evidence of polyploidization events.
B. Genome downsizing following allopolyploidy usually affects the participating hybrids equally.
C. Jumping of transposons is most common many generations after a polyploidization event.
D. Genome downsizing following allopolyploidy results mainly from duplicate gene loss.
Answer: D
You might also like to view...
took just __________ year(s) to deforest an area
the size of Delaware in Maine. a. 1 b. 4 c. 10 d. 15 e. 20
Although attempts to date the divergence between humans and chimpanzees using molecular sequence data do not perfectly agree, a rough consensus from multiple analyses would place the divergence date at ________
A) 175,000 years ago B) 6,000 years ago C) 5 to 7 million years ago D) 3.14 million years ago E) 65 million years ago
Small circles of DNA called __________ exist in addition to the bacterial chromosome
a. capsids b. plasmids c. chromatids d. pili e. centromeres
If an X-linked recessive trait has a frequency of 5% in males, what percentage of females are carriers? (Assume that the population is in Hardy-Weinberg equilibrium.)
A) 9.5% B) 5% C) 95% D) 4.2% E) 10%