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the foxp2 gene encodes a transcription factor associated with vocal learning in mice, bats, birds, and humans. the chimpanzee, gorilla, and rhesus foxp2 proteins are
identical; the human version differs in only 2 of 715 amino acids, a change thought to have contributed to the development of spoken language. in humans, loss-of-function mutations in foxp2 result in severe speech and language disorders. in mice, they hamper brain function and impair vocalizations. mice genetically engineered to carry the human version of foxp2 show changes in their vocal patterns, and more growth and greater adaptability of neurons involved in memory and learning. biologists do not anticipate that a similar experiment in chimpanzees would confer the ability to speak, because spoken language is a complex, epistatic trait (section 13.5). what do you think might happen if their prediction is incorrect?

How do symptoms created by inflammation the doctor

Which represents a negative impact of technology

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.