Question

in humans the gene for black hair colour is B and gene for brown hair colour is b what will be the hair colour of a person having genetic constitution? a)BB b)Bb c)bb

Answer 1

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ANS :  a) Black hair colour ( B is dominant B is dominant both dominant )

           b) Black hair colour  ( B is dominant b is recessive )

          c) Brown hair colour   ( both recessive bb )

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Answer 2

According to the information provided, the father has black hair (the dominant characteristic) while the mother has brown hair (recessive trait)

BB or Bb are two possible attribute combinations for father.

bb is a possible characteristic combo for the mother. Because the expression of a recessive character requires both copies of the characteristic.

We acquire all Bb from the following monohybrid cross between BB and bb. This signifies that all of the children will have black hair.

Bb, Bb, bb, and bb are the results of a monohybrid cross between Bb and bb. This means that the children will have brown or black hair.