Suppose that a mistake made during DNA replication in a cell is not corrected, but instead the
mutation remains in the single strand where it occurred. Then suppose that after the cell divides both
daughter cells survive, and those cells then go on to have DNA replication and ultimately cell division.
There are now four cells where there once was one cell. Assuming that the mistake was never
corrected and that no new uncorrected mistakes occurred, how many of the four cells will have the
mutation in their DNA?
a. none
b. one
c. two
d. three
e. four
C
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__________ Indicate whether the statement is true or false.
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A) Evolution B) Energy transfer C) Nutrient recycling D) Hierarchical organization
The most common form of cystic fibrosis, a fatal genetic disease, occurs when a protein destined for the plasma membrane of the cell is destroyed. The protein is destroyed by one of the cell's organelles because the protein is not shaped correctly. Which
organelle recognizes the misshaped protein? A) Golgi complex B) ribosome C) rough endoplasmic reticulum D) nucleus E) lysosome
Lack of flexibility is a special concern for obese individuals.
a. true b. false