Question

And cabbage butterfly's white color is dominant and yellow color is recessive if a pure white cabbage butterfly meant to the yellow cabbage butterfly all the resulting butterflies are heterozygous white which cross represent the genotypes of the parents generation

Answer 1

The genotype of the white parent will be homozygous and dominant and the genotype of the yellow parent will be homozygous and recessive in order to produce offsprings having genotype heterozygous white.

This cross can be shown as

w w

W Ww Ww

W Ww Ww

In the cross, the allele W is considered to be dominant over the allele w. Hnece, the white dominant parent will have the alleles WW. The recessive parent will have the alleles ww.