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Cystic fibrosis is a disease in which people have a mutation in an ion channel called...

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Biology

Cystic fibrosis is a disease in which people have a mutation inan ion channel called CFTR. This type of channel is found inmultiple tissues throughout the body, and a simple mutation in thischannel may be expressed in a multitude of ways (sweating disorder,digestive system malfunction, respiratory difficulties, etc…). Thistype of situation when a genetic mutation expresses itself in amultitude of phenotypes is called

Select one:

a. Polygenic inheritance

b. Codominance

c. Epistasis

d. Pleiotropy

e. Incomplete dominance

-----------

DNA nucleotides have a hydroxyl group at the 2’ position on theribose

Select one:

a. False

b. True

--------

DNA polymerases can only work on the lagging strand of thereplication fork once they are finished with the leading strand

Select one:

a. False

b. True

--------

DNA polymerases read the DNA

Select one:

a. In the 3’ to 5’ direction

b. In the 5’ to 3’ direction

c. In either 3’ to 5’ or 5’ to 3’ direction – depending on thesituation

Answer & Explanation Solved by verified expert
3.5 Ratings (504 Votes)
1dpleiotropy Pleiotropy is a condition in which a gene influence more than one unrelated trait Polygenic inheritance is a condition where a trait is controlled by more than one gene Codominance is the condition where the    See Answer
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