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Assuming no gene linkage, in a dihybrid cross of AABB x aabb with AaBb F1 heterozygotes, what is the ratio of the F1 gametes (AB, aB, Ab, ab) that will give rise to the F2 offspring?

1:1:1:1
1:3:3:1
1:2:2:1
4:3:2:1

Respuesta :

Answer:

1.1.1.1

Explanation

The second law of Mendel, also called law of independent segregation state that:

After an event of random crossing, all gametes will be produce in the same proportion.

In other words, If you are working with a typical F2, you will obtain 1/4 of AB 1/4 of aB, 1/4 of Ab and 1/4 of ab.

 

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