Question

1. in corn plants, normal height (h) is dominant over short height (h). complete a hybrid (heterozygous) cross. hybrid corn phenotype probability (%) normal height: short height: hybrid corn

Explanation:

Step1: Determine the genotypes of the parents

Since it is a hybrid (heterozygous) cross, the genotype of each parent is \(Hh\).

Step2: Set up the Punnett square

The possible gametes for each parent are \(H\) and \(h\).

	\(H\)	\(h\)
\(h\)	\(Hh\)	\(hh\)

Step3: Analyze the genotypes and phenotypes

• Genotype \(HH\): normal height
• Genotype \(Hh\): normal height (because \(H\) is dominant)
• Genotype \(hh\): short height

There are 3 out of 4 genotypes (\(HH\), \(Hh\), \(Hh\)) that result in normal height and 1 out of 4 (\(hh\)) that results in short height.

Step4: Calculate the probabilities

For normal height: \(\frac{3}{4}\times100\% = 75\%\)
For short height: \(\frac{1}{4}\times100\% = 25\%\)

Answer:

Normal Height: \(75\%\)
Short Height: \(25\%\)