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

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

abhisar · Answer

Hi
Again you need to draw the punnet square first.

zotti · Answer

got it

abhisar · Answer

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

ookawaiioo · Answer

9:3:3:1

ookawaiioo · Answer

its going to be a 16-square box punnett square

abhisar · Answer

|dw:1415992284505:dw|

abhisar · Answer

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

abhisar · Answer

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

nincompoop · Answer

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

abhisar · Answer

Yes, you are correct....it is

zotti · Answer

yes it is