(E) identify the source of DNA materialQuestions 21-23A culture of white-eyed fruit flies (Drosophila melanogaster) was maintained for manygenerations. Females from the stock white-eyed culture were crossed with red-eyed(wild-type) males. The F1 females were crossed with the white-eyed males from theoriginal culture. The resulting phenotypes of the progeny are summarized below.Parental Generation CrossF1 Generation (at least 500 flies)100% of females are red-eyed100% of males are white-eyedWhite-eyed females x red-eyed malesF1 Generation CrossF2 Generation (at least 500 flies)Fl red-eyed females x white-eyed males50% of females are red-eyed and 50% are white-eyed50% of males are red-eyed and 50% are white-eyed21. The best explanation for the red-eyed F1 females is(A) mutation(B) culture contamination(C) dominance(D) multiple loci(E) sex-influenced traits22. There are white-eyed females in the F2 generation because(A) white is a dominant allele(B) the white allele is autosomal(C) a mutation has occurred(D) these F2 females have two white alleles(E) the white allele is located on the Y chromosome23. Which of the following best describes the mode of inheritance of eye color in the whiteculture?(A) Autosomal(B) Dominant(C) Located on the Y chromosome(D) Sex-linked(E) Lethal24. Assume that genes A and B are not linked. If the probability of allele A in a gamete is 1/2and the probability of allele B in a gamete is 1/2, then the probability that both A and Bare in the same gamete is(A) 1/2 x 1/2(B) 1/2 + 1/2(C) 1/2 1/2(D) 1/2(E) 1/2 x 1/225. A couple has 5 children, all sons. If the woman gives birth to a sixth child, what is theprobability that the sixth child will be a son?(A) 5/6(B) 1/2(C) 1/5(D) 1/6(E) 1/64

Name: (E) identify the source of DNA materialQuestions 21-23A culture of wh
Uploaded: 2024-03-20T06:43:04.000Z
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Description: (E) identify the source of DNA materialQuestions 21-23A culture of white-eyed fruit flies (Drosophila melanogaster) was maintained for manygenerations. Females from the stock white-eyed culture were crossed with red-eyed(wild-type) males. The F1 fem