Cheetahs have been through a genetic bottleneck; evidence for this is that
A. the body is long, thin, and graceful.
B. these cats are members of an endangered species.
C. there is very little genetic variability.
D. little natural selection occurs in this species.
E. they originally came from small areas of Africa.
C. there is very little genetic variability.
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Five new individuals were added to this small population in 1986 and ten more were added between 1990-1994. According to the figure above, what occurred in this population after these additions?
A) The population increased exponentially. B) The population increased in overall numbers. C) The population growth rate increased. D) The population continued to decline
Two species utilizing the same food source is an example of ____
a. coevolution b. mimicry c. interference competition d. exploitative competition e. mutualism
If an individual is heterozygous at two loci (A b / a B) that are located on the same chromosome arm with A closer to the centromere than B, under what conditions would a crossover in a somatic cell generate a twin spot?
A) The crossover would have to occur between the A locus and the centromere and involve two homologous, nonsister chromatids. B) The crossover would have to occur between the A locus and the B locus and involve two homologous, nonsister chromatids. C) The crossover would have to occur between the B locus and the end of the chromosome and involve two homologous, nonsister chromatids. D) A double crossover would have to occur, with one crossover between the A locus and the centromere and a second crossover between the A and B loci, and both crossovers would have to involve two homologous, nonsister chromatids. E) No crossover in a somatic cell could generate a twin spot.
Explain the major difference between daughter cells formed by mitosis and those formed by meiosis. What occurs
when two daughter cells formed during meiosis fuse? What will be an ideal response?