Question

guinnea pigs, black eyes are dominant to red eyes. A male guinnea pig that is heterozygous is crossed with a female that is red eyed. What are the expected phenotypes of their offspring and in what ratio and percent?

Answer 1

The expected phenotypes of the offspring from a cross between a heterozygous black-eyed male guinea pig and a red-eyed female guinea pig would be 50% males with black eyes and 50% males with red eyes, as well as 50% females with black eyes and 50% females with red eyes.

Step-by-step explanation:

The expected phenotypes of the offspring from a cross between a heterozygous black-eyed male guinea pig and a red-eyed female guinea pig would be:

• 50% males with black eyes
• 50% males with red eyes
• 50% females with black eyes
• 50% females with red eyes

The ratio of the expected phenotypes would be 1:1 for both males and females, meaning that there would be an equal number of offspring with black eyes and red eyes.