If you were able to look very closely at a portion of DNA and find methylated histones, you would
A. be looking at a region of inactive chromatin.
B. be mistaken since only DNA can be methylated, not histones.
C. be looking at a chromatin remodeling complex.
D. be looking at a region of active chromatin.
Answer: A
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Which of the numbered respiratory complexes is not correctly paired with its name?
A) complex I: NADH dehydrogenase complex B) complex II: succinate-coenzyme Q oxidoreductase complex C) complex III: coenzyme Q-cytochrome c oxidoreductase complex D) complex IV: cytochrome c reductase complex E) none of the above
Ctenophores are lined with 10 rows of long tentacles used for locomotion
Indicate whether the statement is true or false
The bird with the largest wings, also a marine bird, is called the:
a. frigate bird. b. pelican. c. albatross. d. gull. e. cormorant.
Which of the following statements about exergonic
reactions is false? a. They release energy. b. Glucose metabolism is an example. c. Their products have more energy than the reactants. d. Some energy is converted to less biologically useful forms. e. Bonds are broken.