If neither mother nor father express a Olivia D'Ambrogio @Saylor

Question 110 / 120: If neither mother nor father express a sex-linked trait such as colorblindness (X', where the apostrophe represents the presence of the associated allele), but both of their sons express the trait, what are the genotypes of the parents?

A XX and X'Y

B XX and XY

C X'X and X'Y

D X'X and XY

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Evolutionary Biology & Ecology BIO102

Author:

Dr.Olivia D'AmbrogioLecturer

Saylor.org

USA

Access: Public Instant Grading

Attribution: Olivia D'Ambrogio Introduction to Evolutionary Biology and Ecology. (The Saylor Academy 2014), http://www.saylor.org/courses/bio102/ (Accessed 16 May, 2014). License: Creative Commons BY-NC-ND

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