Mati ng Phenotype ofParent # 1 4 Spotted/white 2 Spotted/white 3 Spotted/orange Spotted/orange Spotted/orange Genotype of Parent #1 Phenotype ofParent #2 Striped/orange Striped/orange Striped/white Striped/orange Striped/orange Genotype of Parent #2
4) In frost moths, two alleles of one gene determine the character difference
of spotted versus striped wings and two alleles of a separate, independent gene
determine the character difference of orange wing background versus white wing
background. The results for four matings of moth
a) Assign the letter “s” to the wing pattern gene and letter “w” to the background
color gene. Write in the capital letter for the dominant phenotype and the lower
case letter for the recessive phenotype. Also, write whether each allele is dominant (D)
or recessive (R).
Wing pattern gene:
Spotted
- letter assignment:____
- dominant or recessive:____
Striped
- letter assignment:____
- dominant or recessive:____
Background color gene:
orange:
- letter assignment:____
- dominant or recessive:____
white:
- letter assignment:____
- dominant or recessive:_____
b) Based on the four matings in Question 4: What are the genotypes of each
parent in each cross? If more than one genotype is possible, list the alternative
possibilities. (Remember that each mating involved a separate set of parents, so the
4 matings involved 8 separate parents in total). Fill in the genotypes on the blank table image attached.
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