Question

T1 generation plants for Cry 1Ac gene showed 3:1 segregation for the selected trait and gene. When the 3 plants with the gene were selfed which one of the following statements explain the results

• A. Two of three plants produced all the progeny plants with the gene
• B. All three plants produced all the progeny plants with the gene
• C. Only one out of 3 plants produced all the progeny plants with the gene
• D. All the three plants produced progeny plants which showed segregation for the gene

Hint:

Among the offspring displaying a dominant phenotype in a monohybrid cross, the ratio of homozygotes to heterozygotes is always 1:2.
Only the homozygote (\(AA\), or 1 out of 3) will breed true to produce 100% dominant progeny.

Answer 1

The Correct Option is C