Q1. What proportion of the progeny will be expected to phenotypically resemble the first parent? A) 1/4 B) 1/8 C) 3/4 D) 3/8 E) 1 31) A 1:2:1 phenotypic ratio in the F2 generation of a monohybrid cross is a sign of i) complete dominance. ii) Multiple alleles. iii) Incomplete dominance. iv) Polygenic inheritance. v) pleiotropy.

Q2. It also makes an antidote molecule called brevenal that binds to sodium channels and protects them against the toxin. Brevenal may end up being a treatment for CF; in a sheep CF model, brevenal blocked bronchoconstriction and enhanced the clearance of mucus. Now, back to our understanding of CF. Where does the mutation appear in the CFTR?