Question

Test cross of dihybrid ratio is 1 : 1 : 1: 1. It proves that

• A. F${}_1$ hybrid produces four different progeny
• B. F${}_1$ hybrid is homozygous
• C. Two different progeny are produced by parents
• D. None of the above

Answer 1

The correct option is D None of the above

1:1:1:1 is the phenotypic ratio which is classic Mendelian ratio for a test cross in which the alleles of the two genes assort independently into gametes (BbEe X bbee). It is a test done to investigate the genotype of parents.