Pea plants are tall if they have the genotype tt or tt, and they are short if they have genotype tt. a tall plant is mated with a short plant. which outcome below would indicate that the tall parent plant was heterozygous?

General
1

pea plants are tall if they have the genotype tt or tt, and they are short if they have genotype tt. a tall plant is mated with a short plant. which outcome below would indicate that the tall parent plant was heterozygous?

2

Which outcome below would indicate that the tall parent plant was heterozygous?

Answer:
In genetics, the height of pea plants can be determined by specific genotypes. According to LectureNotes, pea plants are tall if they have the genotype TT or Tt, and they are short if they have the genotype tt.

When a tall plant (genotype TT or Tt) is mated with a short plant (genotype tt), there are four possible outcomes in the offspring:

  1. 100% of tall plants: This outcome would indicate that the tall parent plant was homozygous dominant (TT).
  2. 50% tall plants, 50% short plants: This outcome would indicate that the tall parent plant was heterozygous (Tt).
  3. 100% short plants: This outcome would indicate that the tall parent plant was homozygous recessive (tt).
  4. Inconsistent results: If the offspring show varying heights not consistent with the expected ratios, it may be due to factors other than simple Mendelian genetics.

Therefore, if the outcome of the mating between the tall plant and short plant results in 50% tall plants and 50% short plants, it would indicate that the tall parent plant was heterozygous (Tt) for the height trait.