Question

O

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Lab: Heredity and Punnett Squares
Assignment: Reflect on the Lab Active
Analyzing Inheritance of Traits
S
S
S
Ss
Ss
S
SS
SS
In horses, having straight hair (S) is dominant ov
having curly hair (s). A heterozygous parent with
straight hair is crossed with a homozygous recess
parent with curly hair.
What is the probability that the offspring will have
hair?
O 25%
O 50%
O 75%
O 100%
DELL

Answer 1

The probability of the offspring having straight hair is 50%.

Step-by-step explanation:

In horses, the straight hair (S) allele is dominant over the curly hair (s) allele. When a heterozygous parent with straight hair (Ss) is crossed with a homozygous recessive parent with curly hair (ss), the Punnett square can be used to determine the probability of the offspring having straight hair.

The Punnett square for this cross would show that there is a 50% chance of the offspring having straight hair (SS) and a 50% chance of the offspring having curly hair (Ss).

Therefore, the correct answer is 50%.

Learn more about Heredity and Punnett squares