2. Consider two gene loci in the mouse, locus1 and locus 2. Each locus is on a different, nonhomologousautosomal chromosome . Alleles at locus 1 influence fur color.Allele A is for black and allele a is for white.Allele A is completely dominant to allele a . Allelesat locus 2 influence stature; allele B is for tall andallele b is for short. Allele B is completelydominant to allele b.
Mouse 1, genotype Aa Bb, mates withfemale mice , genotype Aa Bb; 100 progeny are produced.
___: What fraction of the gametes from mouse 1is expected to be genotype Ab ?
___: What fraction of the gametes from mouse 1is expected to have allele a ?
___: What fraction of the progeny is expectedto be true-breeding for both stature and black fur?
___: How many progeny are expected to be tallwith white fur? Show your calculations.
___: How many progeny are expected to beheterozygous at both loci? Show yourcalculations.
___: If you randomly choose two progeny mice,one at a time, what is the probability that both mice are tall andwhite? Show your calculations.
3. Using the geneloci, alleles and phenotypes as described in question 2, considerthis mating between Mouse 3, black and tall, and mouse 4, black andtall. That mating produced these progeny: 58 black and short, 165black and tall, 25 white and short, 62 white and tall.
____: what is the expectednumber of progeny of the phenotypic class, black and short?Show your work.
____: What is the Chi-squarevalue for these observed and expected data? Show yourwork.
___: How many degrees offreedom are used for the Chi-square test in thissituation?
______: What is theapproximate Chi-square probability for this Chi-square value anddegrees of freedom?
_____: Mouse 3 mated withmice that had the phenotype short & white, and produced 200progeny. How many progeny are expected to have the phenotype, blackand tall?
____: In addition tothe gene loci, alleles and phenotypes described in question 1,consider a third gene locus with alleles D and d; D for long fur,and d for short fur. D is completely dominant to allele d. Thisgene locus segregates independently of the other two loci. Mouse 5,genotype Aa Bb Dd, mates with mouse 6 of the same genotype.What fraction of the progeny are expected to have the phenotype,black fur, tall & long fur?
I don't need the answers to question #2, justquestion #3. (the hilghted) However question 3 asks for informationfrom question 2, so that is why it is there
Thank you
2. Consider two gene loci in the mouse, locus1 and locus 2. Each locus is on a different, nonhomologousautosomal chromosome . Alleles at locus 1 influence fur color.Allele A is for black and allele a is for white.Allele A is completely dominant to allele a . Allelesat locus 2 influence stature; allele B is for tall andallele b is for short. Allele B is completelydominant to allele b.
Mouse 1, genotype Aa Bb, mates withfemale mice , genotype Aa Bb; 100 progeny are produced.
___: What fraction of the gametes from mouse 1is expected to be genotype Ab ?
___: What fraction of the gametes from mouse 1is expected to have allele a ?
___: What fraction of the progeny is expectedto be true-breeding for both stature and black fur?
___: How many progeny are expected to be tallwith white fur? Show your calculations.
___: How many progeny are expected to beheterozygous at both loci? Show yourcalculations.
___: If you randomly choose two progeny mice,one at a time, what is the probability that both mice are tall andwhite? Show your calculations.
3. Using the geneloci, alleles and phenotypes as described in question 2, considerthis mating between Mouse 3, black and tall, and mouse 4, black andtall. That mating produced these progeny: 58 black and short, 165black and tall, 25 white and short, 62 white and tall.
____: what is the expectednumber of progeny of the phenotypic class, black and short?Show your work.
____: What is the Chi-squarevalue for these observed and expected data? Show yourwork.
___: How many degrees offreedom are used for the Chi-square test in thissituation?
______: What is theapproximate Chi-square probability for this Chi-square value anddegrees of freedom?
_____: Mouse 3 mated withmice that had the phenotype short & white, and produced 200progeny. How many progeny are expected to have the phenotype, blackand tall?
____: In addition tothe gene loci, alleles and phenotypes described in question 1,consider a third gene locus with alleles D and d; D for long fur,and d for short fur. D is completely dominant to allele d. Thisgene locus segregates independently of the other two loci. Mouse 5,genotype Aa Bb Dd, mates with mouse 6 of the same genotype.What fraction of the progeny are expected to have the phenotype,black fur, tall & long fur?
I don't need the answers to question #2, justquestion #3. (the hilghted) However question 3 asks for informationfrom question 2, so that is why it is there
Thank you
