Question

some alleles are lethal. in mice, yellow body color is determined by a lethal L. Mice that are homozygous for this allele(LL) die before they are born. mice that are heterozygous (Ll) live and have yellow body color. mice that are homozygous recessive (ll) have agouti (gray) body color. what is the expected phenotypic ratio of offspring whose parents have yellow body color?

Answer 1

i would help but i don't no the answer lol

Answer 2

is the answer 1/2

Answer 3

This is very simple genetics.
So we are going to do cross with two parents having having a yellow body color. From the text we know that only mice who are homozygous are capable of such a thing (We don't except dead mice to reproduce, else you write a article in Nature!).
So we get a cross square that would look like this:

Please fill out the diagram I made in this post and try give an answer to the phenotypic ratios.