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Read the given paragraph to answer In ...

Read the given paragraph to answer
In a certain plant, yellow fruit colour (Y) is dominant to green fruit colour (y) and round shape (R) is dominant to oval shape (r). The two genes involved are located on different chromosomes.
Which of the following is correct for the condition when plant YyRr is back crossed with the double recessive parent ?

A

`9:3:3:1` ratio of phenotypes only

B

`9:3:3:1` ratio of genotypes only

C

`1:1:1:1` ratio of phenotypes only

D

`1:1:1:1` ratio of phenotypes and genotypes

Text Solution

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The correct Answer is:
D
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