If Mom can roll her tongue R but Dad cannot Olivia D @Saylor.org

Question 20 / 120: If Mom can roll her tongue (R) but Dad cannot (r), and their children are 1/2 tongue rollers and 1/2 not, then what are the genotypes of Mom and Dad? Assume tongue rolling shows complete dominance.

A RR and rr

B Rr and rr

C RR and Rr

D Rr and Rr

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https://www.jobilize.com/evolutionary-biology-ecology-bio102-quiz-dr-olivia-d-ambrogio

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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