Question

When two hybrids rrTt and Rrtt are crossed, the phenotypic ratio of offspring shall be

• A. 3 : 1
• B. 1 : 1 : 1 : 1
• C. 1 : 1
• D. 9 : 3 3 : 1

Answer 1

The correct option is B 1 : 1 : 1 : 1

When two hybrids Trrr and ttRr are crossed, in the next generation 16 progeny are formed, in which tall red – 4 tall white – 4 dwarf red – 4 dwarf white – 4. The ratio is 1:1:1:1

So, the correct answer is ‘1:1:1:1