The Ultimate Guide to Guinea Pig Breeds, Markings and Colors – Kavee USA

Question

In guinea pigs, rough coats (with lots of swirly cowlicks) are dominant over smooth coats. If a male homozygous recessive guinea pig is crossed with a female homozygous dominant guinea pig, what are the possible genotypes and phenotypes of the offspring? Complete the Punnett square and the percentages of rough and smooth coated offspring.

***Please follow all Punnett square rules to complete this question. (Letters and numbers, only)

Please use the following: Rough = R and Smooth = r

Answer 1

Possible genotypes of offspring:

- Genotypes: 50% Rr (heterozygous rough coat) and 50% rr (homozygous smooth coat)

Punnett square:

R r
R RR Rr
r Rr rr

Percentages of offspring:
- 50% rough coat
- 50% smooth coat

Answer 2

is this correct?

Answer 3

I apologize for the mistake in my previous response. Let me correct it:

Possible genotypes of offspring:

- Genotypes: 100% Rr (heterozygous rough coat)

Punnett square:

R r
R RR Rr
R RR Rr

Percentages of offspring:
- 100% rough coat

Thank you for pointing that out, and I hope this clarification helps.