Question

n a cross between two heterozygous individuals (eg. Rr X Rr), the expected phenotypic ratio of the offspring would be


A)1:2:2:1.
B)1:2:1.
C)1:1.
D)3:1.

Answer 1

1 RR, 2 Rr, 1 rr

Answer is B 

Answer 2

The answer is:  [B]:  " 1:2:1 " .
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That is:  "1 RR, 2 Rr, 1 rr " .  Refer to the "Punnett square" below:
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         |   R   |   r  
      R |  RR |  Rr 
      r  |   Rr |   rr 

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