6. suppose a very large population contains a rare recessive allele that causes individuals to die before reaching sexual maturity, when present in the homozygous condition. which of the following is most likely to occur? the allele will remain in the gene pool forever, but at very low frequency, because heterozygotes carry the recessive allele. the allele will slowly increase in frequency as a result of genetic drift. there is not enough information to predict what will happen to this allele. the allele will disappear from the gene pool completely after hundreds of generations. the allele will be lost from the population in 1 to 2 generations, because homozygous recessive individuals have reduced fitness.

Transpiration is the evaporation of water from

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

In a hypothetical breed of dogs, coat color is controlled by two genes. there are six different coat colors in this breed: black, brown, cream, gray, silver, and tan. consider the following crosses. cross 1: black females from a lineage of all black dogs are crossed with brown males from a lineage of all brown dogs. f1 males and females are all black. when f1 are intercrossed, f2 males and females are black or brown. cross 2: black females from a lineage of all black dogs are crossed with tan males from a lineage where all males are tan and all females are cream. f1 males are black, f1 females are gray. when f1 are intercrossed, f2 males and females are black, brown, gray, or tan. cross 3: silver females from a lineage where all females are silver and all males are gray are crossed with brown males from a lineage of all brown dogs. f1 males and females are all gray. when f1 are intercrossed, f2 males are black, brown, gray, or tan, f2 females are cream, gray, silver, or tan. select the correct statements regarding the mode of inheritance of the coat color genes. a) both genes are x-linked. b) both genes are autosomal. c) one of the genes modifies the expression of the other gene. d) each gene has an additive effect on the intensity of coat color. e) each gene independently specifies three colors. f) one of the genes is autosomal, and the other is x-linked.