Proteins that are loosely associated with the cytoplasmic membrane are called ________ proteins.
A. integral
B. peripheral
C. external
D. internal
Answer: B
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Which of the following mechanisms refer to when a bacteria assimilates genetic material (DNA) directly from the environment?
A. Transformation B. Transduction C. Conjugation D. All of the answers are correct
Cystic fibrosis is autosomal recessive. This means that
A) both sexes can be affected and can "skip" generations through carriers. B) carrier mothers pass the mutation to some of their sons, but not to their daughters. C) each affected individual has at least one affected parent. D) both sexes are affected because new mutations occur frequently.
Regelation
What will be an ideal response?
Some bacteria can use sulfur instead of oxygen as a final electron acceptor. What would they produce during anaerobic respiration?
A. H2O B. H2S C. O2 D. S2