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 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 C will be the shortest.
Plant C will be the shortest.
Plant B and Plant C will have similar heights.
To answer this question, we need to understand the relationship between the genotypes and heights of the pea plants. The table provided shows the genotypes of three pea plants for the allele for height.
The genotype of Plant A is "tt", indicating that it carries two recessive alleles for height. The genotype of Plant B is "TT", indicating that it carries two dominant alleles for height. Finally, the genotype of Plant C is "Tt", indicating that it carries one dominant and one recessive allele for height.
In peas, the "T" allele is associated with tall height, while the "t" allele is associated with short height. Since Plant A has two recessive alleles, it is expected to have a short height. Plant B has two dominant alleles and is expected to have a tall height. Plant C has one dominant and one recessive allele, so its height will depend on which allele is expressed.
Based on this information, the most reasonable prediction is that Plant A will be the shortest, Plant B will be the tallest, and Plant C's height will depend on which allele is expressed. Therefore, the correct response is "Plant A will be the tallest."
To arrive at this answer, it's important to know the relationship between the alleles and height in pea plants and infer from the given genotypes.
Based on the given table, we can determine the genotypes of the three plants. Plant A is heterozygous (Tt), Plant B is homozygous dominant (TT), and Plant C is homozygous recessive (tt) for the allele for height.
Since Plant B (TT) is homozygous dominant, it is more likely to exhibit the dominant trait, which in this case is tall height. Therefore, it is reasonable to predict that Plant B will be the tallest.
Plant A (Tt) is heterozygous, meaning it has one dominant and one recessive allele. Since the dominant allele is associated with tall height, Plant A is likely to be tall as well.
Plant C (tt) is homozygous recessive, which means it has two recessive alleles. The recessive allele is associated with short height, so it is reasonable to predict that Plant C will be the shortest.
Therefore, the most reasonable prediction is that Plant B will be the tallest, while Plant C will be the shortest.