White feathers in canaries are dominant to yellow feathers. A heterozygous canary is crossed with a homozygous recessive canary. What is the ratio of the offspring that are homozygous to the total number of offspring? What percent of the offspring will be heterozygous? % DONE

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White feathers in canaries are dominant to yellow feathers. A heterozygous canary is crossed with a homozygous recessive canary. What is the ratio of the offspring that are homozygous to the total number of offspring? What percent of the offspring will be heterozygous? % DONE

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To solve this problem, we will use a Punnett square to determine the genotypes of the offspring from the cross of a heterozygous canary (which has one dominant allele for white feathers and one recessive allele for yellow feathers) with a homozygous recessive canary (which has two recessive alleles for yellow feathers).Let's denote the dominant allele for white feathers as "W" and the recessive allele for yellow feathers as "Y". A heterozygous canary would have the genotype "WY", and a homozygous recessive canary would have the genotype "YY".Step 1: Set up the Punnett square.The heterozygous canary (WY) can pass on either the "W" allele or the "Y" allele to its offspring. The homozygous recessive canary (YY) can only pass on the "Y" allele. The Punnett square will look like this:``` Y YW | | Y | | ```Step 2: Fill in the Punnett square.We will fill in the Punnett square with the possible genotypes of the offspring.``` Y YW |WY|WY Y |YY|YY ```Step 3: Determine the ratio of homozygous to total offspring.From the Punnett square, we see that there are two offspring with the genotype "YY" (homozygous recessive) and two offspring with the genotype "WY" (heterozygous). There are no homozygous dominant offspring in this cross.The ratio of homozygous offspring (YY) to the total number of offspring is 2 homozygous recessive (YY) out of 4 total offspring.Ratio of homozygous to total offspring = 2/4 = 1/2Step 4: Determine the percent of offspring that are heterozygous.There are two heterozygous offspring (WY) out of a total of four offspring.Percent of heterozygous offspring = (Number of heterozygous offspring / Total number of offspring) × 100%Percent of heterozygous offspring = (2 / 4) × 100% = 50%Final Answer:The ratio of the offspring that are homozygous to the total number of offspring is 1/2.50% of the offspring will be heterozygous.

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White feathers in canaries are dominant to yellow feathers. A heterozygous canary is crossed with a homozygous recessive canary. What is the ratio of the offspring that are homozygous to the total number of offspring? What percent of the offspring will be heterozygous? % DONE

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