Question

Many farmers prefer cattle without horns because it is safer for their herds. The allele for no horns (N) is dominant to the allele for the presence of horns (n). A farmer mates a male with horns to a heterozygous female without horns. What is the chance that the offspring will have horns?

Answer 1

There is a 50% chance that the offspring will have horns. To figure out problems like these, drawing a punnett square is very helpful.

Answer 2

There are
`50`% chances that the he offspring will have horns

Step-by-step explanation:

Given -

Allele for "no horns (N) " is dominant over allele for "presence of horn (n)"

A cross is carried out between a male and female with following genotype -

Male with horns - nn

Heterozygous female with no horns - nN

The offsrprings from the above cross will be as follows -

n n

n nn nn

N nN nN

Hence, out of four offspring two have horns "nn" and two have no horns "nN"

Hence, the probability of offspring with horns is

`(1)/(2) * 100\\= 50`%