In a cross between a pure round yellow seeded plant with a pure wrinkled green seeded plant, how many plants are produced in F2 out of 16 which are homozygous for one pair and heterozygous for another ?

Asked by Atulcaald | 19th May, 2018, 01:36: AM

Expert Answer:

Parents: Round and yellow seeds (RRYY) and wrinkled and green seeds (rryy)

In F2 Generation, following are the combinations of plants which are homozygous for one pair and heterozygous for another-

  • RRYy- homozygous round, heterozygous yellow
  • RrYY- homozygous yellow, heterozygous round
  • RRYy- homozygous round, heterozygous yellow
  • Rryy- homozygous wrinkled, heterozygous round
  • RrYY- homozygous yellow, heterozygous round
  • rrYy- homozygous wrinkled, heterozygous yellow
  • Rryy- homozygous wrinkled, heterozygous round
  • rrYy- homozygous wrinkled, heterozygous yellow

Therefore, there are a total of 8 plants out of 16, which are homozygous for one pair and heterozygous for another.

Answered by Sheetal Kolte | 21st May, 2018, 09:51: AM