EarlHerauf
Answered

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Boys can inherit the recessive allele (c) that causes red-green colour blindness from their mother, not from their father. The allele for normal red and green vision is C. Which of the following genotypes are possible in men?
c only c only
B. C or c only
C. CC or cc only
D. CC, Cc or cc only

Sagot :

starrynightsky

The answer would be b because there is a 50% chance for both.
Well, 

If you use the Punnett square chart, you would see that men get 50% and boys 50%

Hence, since both of them are heterogeneous recessive, it would B) C or c only.
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