Question

Use the table to answer the question. Plant A Plant B Plant C tt TT Tt The table shows the genotypes of three pea plants for the allele for height. Which prediction about the three plants is the most reasonable? (1 point) Responses Plant C will be the shortest. Plant C will be the shortest. Plant A and Plant C will have similar heights. Plant A and Plant C will have similar heights. Plant A will be the tallest. Plant A will be the tallest. Plant B and Plant C will have similar heights. Plant B and Plant C will have similar heights.

Answer 1

To make a prediction about the heights of the three pea plants based on their genotypes, let's first summarize the genotypes provided in the table:

• Plant A: tt (homozygous recessive)
• Plant B: TT (homozygous dominant)
• Plant C: Tt (heterozygous)

In pea plants, the tall phenotype (T) is typically dominant over the short phenotype (t). Therefore:

• Plant A (tt) will express the short phenotype.
• Plant B (TT) will express the tall phenotype.
• Plant C (Tt) will also express the tall phenotype because it has at least one dominant allele (T).

From this information, we can make the following conclusions regarding their heights:

1. Plant A will be the shortest because it has the recessive genotype (tt).
2. Plant B will be the tallest because it is homozygous dominant (TT).
3. Plant C will have a height similar to Plant B because it is heterozygous (Tt) and will express the tall phenotype as well.

Given this analysis, the most reasonable prediction is:

Plant A will be the tallest.

However, this option is not accurate based on the analysis. The correct interpretation is that Plant C will not be the tallest; rather, Plant B will be the tallest.

The best response based on your options would clearly indicate:

Plant C will be the shortest.