Homozygous tall pea plants look the same as heterozygous tall pea plants. Formulate a pollination experiment to identify whether a tall pea plant is homozygous or heterozygous. Explain your answer in 3-5 sentences. (4 points)
To determine whether a tall pea plant is homozygous or heterozygous, you can perform a test cross. First, cross the tall pea plant with a homozygous short pea plant. If the resulting offspring are all tall, then the original tall plant is homozygous. If the offspring are a mix of tall and short plants, then the original tall plant is heterozygous. This is because if the tall plant is homozygous, all its offspring will inherit the tall allele from it and be tall. However, if it is heterozygous, some offspring will inherit the short allele from the short plant and be short.
To determine whether a tall pea plant is homozygous or heterozygous, you can conduct a test cross. First, select a true-breeding short pea plant with the genotype "tt" as the parent plant. Next, cross-pollinate the tall pea plant in question (unknown genotype) with the short parent plant. If the resulting offspring are all tall, it would indicate the tall plant is homozygous for the tall trait (TT). However, if some offspring are short, it would suggest that the tall plant is heterozygous (Tt). By comparing the phenotypes of the offspring, you can determine the genotype of the tall pea plant.
To determine if a tall pea plant is homozygous or heterozygous, you can conduct a pollination experiment. First, select the tall pea plant and cross-pollinate it with a known homozygous short pea plant. The offspring produced will have a phenotype that is tall, indicating that the tall parent is heterozygous. Next, take the heterozygous tall offspring and cross-pollinate them with each other. If some of the resulting plants are short, it indicates that the tall parent is heterozygous. However, if all the offspring are tall, it suggests that the tall parent is homozygous. By analyzing the offspring's phenotypes from the different crosses, you can deduce whether the tall parent is homozygous or heterozygous.
