a.
To determine:
The genotypes,
Introduction:
Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.
b.
To determine:
The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a “yellow female” is crossed with a “gray male”. The F1 are intercrossed to produce the F2 progeny.
Introduction:
Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.
c.
To determine:
The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when a yellow female is crossed with a gray male. The F1 females are backcrossed with gray males.
Introduction:
Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.
d.
To determine:
The genotypes, phenotypes and expected proportions of the F1 and F2 generation, when F2 flies form part b mate randomly.
Introduction:
Drosophila melanogaster is a species of fly, these species is known generally as the common fruit fly or vinegar fly. They have XX-XO system of sex determination, females possess two X chromosomes, whereas male possess a single X chromosome.
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