Q: White-eyed flies have a lower survival rate than red-
White-eyed flies have a lower survival rate than red-eyed flies. Based on the data in Figure 3.18, what percentage of white-eyed flies survived compared with red-eyed flies, assuming 100% survival of...
See AnswerQ: A rare form of dwarfism that also included hearing loss was found
A rare form of dwarfism that also included hearing loss was found to run in a particular family. It is inherited as a dominant trait. It was discovered that an affected individual had one normal copy...
See AnswerQ: Mexican hairless dogs have little hair and few teeth. When a
Mexican hairless dogs have little hair and few teeth. When a Mexican hairless is mated to another breed of dog, about half of the puppies are hairless. When two Mexican hairless dogs are mated to each...
See AnswerQ: In a species of plant, two genes control flower color.
In a species of plant, two genes control flower color. The red allele (R) is dominant to the white allele (r); the color-producing allele (C) is dominant to the non-color-producing allele (c). You sus...
See AnswerQ: Why are the homologous regions of the X and Y chromosome important
Why are the homologous regions of the X and Y chromosome important during meiosis?
See AnswerQ: Red eyes is the wild-type phenotype in Drosophila, and
Red eyes is the wild-type phenotype in Drosophila, and several different genes (with each gene existing in two or more alleles) affect eye color. One allele causes purple eyes, and a different allele...
See AnswerQ: In chickens, some varieties have feathered shanks (legs), but
In chickens, some varieties have feathered shanks (legs), but others do not. In a cross between a Black Langhans (feathered shanks) and a Buff Rocks (unfeathered shanks), the shanks of the F1 generati...
See AnswerQ: In sheep, the formation of horns is a sex-influenced
In sheep, the formation of horns is a sex-influenced trait; the allele that results in horns is dominant in males and recessive in females. Females must be homozygous for the horned allele to have hor...
See AnswerQ: A particular breed of dog can have long hair or short hair
A particular breed of dog can have long hair or short hair. When true-breeding long-haired animals were crossed to true-breeding short-haired animals, the offspring all had long hair. The F2 generatio...
See AnswerQ: In the clover butterfly, males are always yellow, but females
In the clover butterfly, males are always yellow, but females can be yellow or white. In females, white is a dominant allele. Two yellow butterflies were crossed to yield an F1 generation consisting o...
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