Question

In considering the cross YyRr x YyRr, the phenotype ratios of the F2 generation will be _____.

1:3:1
3:1
9:3:3:1
4:1

Answer 1

Hi
Again you need to draw the punnet square first.

Answer 2

got it

Answer 3

Can you...?
Ok i m gonna do the outline for ya

Answer 4

9:3:3:1

Answer 5

its going to be a 16-square box punnett square

Answer 6

Now, when you fill it and arrange every identical genotype in a group. You'll find 4 groups...having 9, 3, 3 and 1 offsprings and hence the ratio 9:3:3:1

Answer 7

Quick Tip:
You may like to remeber this fact as it is a standard question and it will save lot of time.

Answer 8

INSTEAD OF A PUNNETT, THERE'S AN ANALYTIC METHOD TO DO THIS THAT IS ALGEBRA-RELATED.

Answer 9

Yes, you are correct....it is

Answer 10

yes it is