Aman whose blood group is heterozygous b is married to a woman whose blood group is also heterozygous b. which of the following statement is correct about the blood group of their four offspring.(a) three of them belong to blood group b,(b) three of them belong to blood group o,(c) none of them belong to blood group o,(d) two of them belong to blood group b.

A. three of them would belong to blood group B

Explanation:

In a punnet square it would result in:

          B         b

B      BB       Bb

b      Bb       bb

A three of them belong to blood group B

Explanation:

So one is Bo and the other is also Bo, so then it would lead to BB, Bo, Bo, oo.

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

the answer is :