Mendel's F1 generation of pea plants were heterozygous. What does this mean? A. All of the offspring plants would have the reces
sive trait. B. Half of the offspring plants would have the dominant trait, while the other half would have the recessive trait. C. The offspring had two identical alleles for the same gene. D. The plants had two different alleles for the same trait.
When an organism is heterozygous for a particular trait, it means the organism has two different allele for that particular trait. An allele is the alternate for of a gene. For example, using Mendel's pea plants, he studied the height trait having the tall and the short allele for this height trait. Thus, this cn be written as (Tt) where T represent the tall allel and t represent the short allele.
The correct answer is option D. "The plants had two different alleles for the same trait".
Explanation:
An organism that is heterozygous have two different alleles for the same gene, having only in its phenotype the trait that is expressed by the dominant allele. In this case, Mendel's F1 generation of pea plants were heterozygous. This means that all the plants had two different alleles for the same trait, but also, all the plants have only the dominant trait expressed.
