question_answer

If the red flowered F1 hybrid from the cross of red x white pea, is crossed with recessive white  flowered plant, the ratio in the off springs is:

A)  2: 3                                       

B)  1: 1

C)  3: 1                                       

D)  1: 2: 1

Correct Answer: B

Solution :

                 When a red flowered (RR) and a white flowered (rr) pea plant is crossed, F1 hybrid is formed.   So, the ratio will be = 1: 1 It is an example of monohybrid test cross.