a. What mechanism best explains the patter observed in the uploaded question? b.
ID: 34151 • Letter: A
Question
a. What mechanism best explains the patter observed in the uploaded question?
b. What is the genotype of the Mighty Mouse? Explain.
c. Mighty is placed in a cage with a female mouse named Mini that was white. Shortyly thereafter, the female is pregnant and a few weeks later she is about to give birth. Assuming Mighty fathered her offspring, what color would you predict them all to be? Explain your answer.
QUESTION 4. In a species of mice, fur color is brown (wild-type) or white (mutant). The brown allele is dominant and white is recessive. The gene that determines fur color is located on an autosomal chromosome, and there are only 2 alleles. Mighty Mouse is brown. He came from a litter in which half of the offspring were brown and half were white. Mighty Mouse?s father was homozygous for the brown allele. His mother was a heterozygote. a. What mechanism best explains the pattern that you observe above and why? b. What is the genotype of Mighty Mouse? Explain. c. Mighty is placed in a cage with a female mouse named Mini that was white. Shortly thereafter, the female is pregnant and a few weeks later she is about to give birth. Assuming Mighty fathered her offspring, what color would you predict them all to be? Explain your answer.Explanation / Answer
a. Let the allele for brown fur color be "B" and white fur color be "b". When a homozygote BB is crossed to a heterozygote Bb, the entire progeny will be brown. This phenomenon is "law of dominance."
b. Genotype of Mighty mouse can be either "BB" or "Bb".
c. If Genotype of Mighty is "BB", the cross will be BB X bb; The entire progeny will be brown.
If Genotype of Mighty is "Bb", the cross will be Bb X bb; Half the progeny will be brown , and the rest half will be white.
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