If a plant with genotype Aa is crossed with a plant with genotype aa, what is th

If a plant with genotype Aa is crossed with a plant with genotype aa, what is the expected genotypic ratio of the offspring?

If a plant with genotype Aa is crossed with a plant with genotype aa, what is the expected genotypic ratio of the offspring?

Step 1: Identify the genotypes of the parent plants. One parent has genotype Aa and the other has genotype aa.
Step 2: Write down the possible gametes (sperm or egg cells) from each parent. The Aa parent can produce gametes A and a. The aa parent can only produce gametes a.
Step 3: Set up a Punnett square to visualize the possible combinations of the gametes. The rows will represent the gametes from the Aa parent and the columns will represent the gametes from the aa parent.
Step 4: Fill in the Punnett square. The combinations will be: A (from Aa) with a (from aa) gives Aa, and a (from Aa) with a (from aa) gives aa.
Step 5: Count the genotypes of the offspring. You have 1 Aa and 1 aa.
Step 6: Write the genotypic ratio. The ratio of Aa to aa is 1:1.

Punnett Square – Understanding how to use a Punnett square to predict the genotypic ratios of offspring from a genetic cross.
Genotype and Alleles – Knowledge of dominant and recessive alleles and how they combine in offspring.