What outcome would be expected if the white gene and cream gene were both located on the X chromosome?

In a scenario where both the white and cream genes are located on the X chromosome, the expected outcome involves understanding X-linked inheritance patterns. Males have one X chromosome and one Y chromosome (XY), while females have two X chromosomes (XX).

If both the white and cream genes are X-linked, the females, having two X chromosomes, can express a range of phenotypes based on the combinations of these genes (e.g., red, white, cream). Males, having only one X chromosome, will express whatever phenotype is linked to that single X chromosome. Therefore, when considering the potential offspring from a cross involving these genes, you would expect a balanced representation of female progeny carrying combinations of both genes.

In this case, the question asks about the proportions of red-eyed and cream-eyed offspring. Female progeny could have combinations that result in red eyes given the necessary genotype, allowing them to express this phenotype equally alongside what the male offspring express based solely on their single X chromosome. Consequently, an equal number of males and females can be expected, each showing distinct eye color patterns depending on the X-linked gene inheritance they receive from their parents.

Understanding these genetic principles shows why there would be an equal number of females and males with red eyes