Question

Please I need help with questions 5-9 and it’s very hard and I’m struggling with it and if you need to see the picture big then click on it and it will be big and can you check if I plot the letters correct in to the Punnet square for questions 5-9

Answer 1

All of them should be correct except for the upper left box of question 8. The correct genotype of the box should be WW instead of Ww.

When making a punnett square, all the results in the 4 boxes are combinations of the alleles present in the parents. The different combinations in the square are listed according to the allele on its left and on its top. For example, in question 9, the first box of the square (left upper) should be a combination of R and R, because the allele on the left side and the top (outside the box) are R and R. And the 2nd box, which is the upper right, should be Rr, because the allele on top is r and the allele on the left is R. Always put upper case in front, so the answer is Rr.

Same concept for other boxes, just match the alleles on the top of it, and the left side of it (the ones outside the box), and rearrange the upper/lower cases, and you'll get the correct answer.