A diheterozygous black camole bull was crossed with a homozygous black horned cow. Identify first generation hybrids

A diheterozygous black camole bull was crossed with a homozygous black horned cow. Identify first generation hybrids if blackness and horniness are known to be the dominant trait, and redness and horniness are recessive.

Let’s designate the gene that determines the black color of cows’ fur as K, then the gene for the red coat of these animals will be designated as k.

Let’s designate the gene that determines the development of horns in cows as l, then the hornless gene will be L.

A diheterozygous black hornless bull will be recorded as KkLl. Such an animal will produce four types of spermatozoa – kl, KL, Kl, kL.

The black horned cow is homozygous by condition – KK ll. It will produce the same type of Kl eggs.

F1 offspring from a given cow and bull will be represented by the following options:

black calves with horns (Kkll, KK ll) – 50%;

black calves without horns (KK Ll, KkLl) – 50%.