Question

In giraffes, long necks (N), long legs (L), dark spots (D), and the ability to digest meat (M) are all dominant traits. Which of the following genotypes would produce a giraffe that has a long-neck, short-legs, is light-spotted and able to digest meat?

A) Nn ll dd MMB) Nn LL dd MMC) NN LL Dd MmD) NN ll dd mm

Answer 1

The answer is A, the giraffe could be heterozygous for a long neck and have a dominant and recessive trait, but he will still show a long neck. Since having short legs is a recessive trait, the giraffe will have to inherit 2 recessive traits and be homozygous recessive for the short leg traits. The same goes for having homozygous recessive for light spots. The giraffe only needs to be heterozygous to be able to digest meat
So as long as it has 1 dominant trait it is able to eat meat. Therefore, your answer is A.

Answer 2

I think the answer is A

Ok so let’s say that capital letters are dominant and lowercase letters are recessive, since you want the dominate trait for the neck and digestion, you would want at least one uppercase N and uppercase M since the one gene would over power the recessive one, and for spots and legs, you’re going to need two lowercase letters, in this case two lowercase l s and two lowercase d s...does that make sense? A is the only answer with an uppercase N and an uppercase M while still having two lowercase l s and two lowercase d s