Question

a Black Mice mates with a brown Mouse all progeny are black mice. a) why no brown offsprings are produced ? b)define the law of segregation taking example of the above mating of the mice.c) draw a cross to show the phenotypes of the f2 progeny formed.

Answer 1

a) ans. Because black has dominant gene
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b) ans. Two factors of a character are separated at the time of gamete formation & each gamete gets only one factor for that character.
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Do your self no. C & eg of B