Homozygous tall (TT) pea plants look the same as heterozygous tall (Tt) 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)

Answer 1

To determine whether a tall pea plant (T) is homozygous (TT) or heterozygous (Tt), you can perform a test cross. This involves pollinating the tall plant in question with a homozygous recessive plant (tt), which is short. If the tall plant is homozygous (TT), all offspring from this cross will be tall (Tt). However, if the tall plant is heterozygous (Tt), the offspring will exhibit a 1:1 ratio of tall (Tt) to short (tt) plants. By analyzing the phenotypic ratios of the offspring, you can ascertain the genotype of the original tall plant.

Answer 2

In 3–5 sentences, explain how genetically modified plants and animals help provide food for a growing population.(4 points)