Question

Heterozygous tall and violet flowered pea plants were selfed and total of 512 seeds are collected. What will be the total number of seeds for both heterozygous traits?

• A. 128
• B. 256
• C. 384
• D. 64

Answer 1

Answer: (B)

256

Dihybrid cross is a cross between two different lines/genes that differ in two observed traits. In the Mendelian sense, between the alleles of both these loci, there is a relationship of complete dominance - recessive. In the example pictured to the right, RRYY/rryy parents result in F1 offspring that are heterozygous for both R and Y (RrYy).

So the correct option is '256’.