What is the expected genotypic ratio from a monohybrid cross?

What is the expected genotypic ratio from a monohybrid cross?

Step 1: Understand what a monohybrid cross is. It involves crossing two organisms that differ in one trait.
Step 2: Identify the alleles involved. For example, let's say we have one dominant allele (A) and one recessive allele (a).
Step 3: Set up the parental generation. For example, one parent is homozygous dominant (AA) and the other is homozygous recessive (aa).
Step 4: Perform the cross. The offspring will inherit one allele from each parent.
Step 5: Determine the possible genotypes of the offspring. The combinations will be AA, Aa, and aa.
Step 6: Count the genotypes. You will have 1 AA, 2 Aa, and 1 aa.
Step 7: Write the genotypic ratio. This gives you a ratio of 1:2:1.

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