Question

the abo blood group has three different alleles: $i^{a},i^{b}$, and $i$. the genotypes and phenotypes (blood types) for different combinations of the three alleles are shown in the table. possible genotype and phenotypes of abo blood group what percentage of offspring from a cross between a homozygous type a parent with a heterozygous type a parent is expected to contain the $i$ allele? 0% 25% 50% 75% 100%

Explanation:

Step1: Determine the genotypes of the parents

A homozygous Type A parent has the genotype \(I^{A}I^{A}\). A heterozygous Type A parent has the genotype \(I^{A}i\).

Step2: Create a Punnett square

The possible gametes from the \(I^{A}I^{A}\) parent are all \(I^{A}\). The possible gametes from the \(I^{A}i\) parent are \(I^{A}\) and \(i\).
The Punnett square is:

	\(I^{A}\)	\(i\)

Step3: Analyze the offspring genotypes

The genotypes of the offspring are \(I^{A}I^{A}\) and \(I^{A}i\). Out of 2 possible genotypes, 1 (\(I^{A}i\)) contains the \(i\) allele.
The probability is \(\frac{1}{2}= 50\%\)

Answer:

50%