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1. a brown mouse is mated with a white mouse. all of their offsprings are brown. if two of these brown offsprings are mated, what fraction of their offsprings will be white? (brown is dominant over white fur color)

Respuesta :

A quarter of their progeny will be white. This cross is a monohybrid cross, as indicated in the question.

Has brown fur taken over?

Silver fur is subordinate to brown fur. Both parents must possess at least one silver fur allele in order to produce silver-furred offspring (b), as recessive characteristics can only manifest in homozygous states. The parents' phenotypic is brown, which indicates that they have at least one allele for brown fur (B).

What are the odds that a child will be white?

We anticipate 160 of the 213 children (3/4 x 213) will be white. Additionally, the Punnett square above indicates that one-fourth of the offspring will be pure breeding white (i.e., homozygous dominant).

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