What is the fate of CoA after it delivers an acetyl group into the citric acid cycle?
a. It is degraded and used for energy.
b. It is recharged with another acetate.
c. It is used in protein synthesis.
d. It remains in an inactive form until the cell dies.
e. It is reused to start glycolysis.
ANSWER: b
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In the 1980s and 1990s, positional cloning led to the discovery of genes that
A) encode all proteins in the human genome. B) cause hemophilia, fragile X syndrome, and colorblindness. C) cause several types of cancers. D) cause Duchene muscular dystrophy, cystic fibrosis, and Huntington disease.
What tissue type protects the body from water loss?
What will be an ideal response?
Pair-rule genes
A. are activated by pair-rule genes and by maternal effect genes B. are activated by gap genes and expressed in alternating stripes C. are activated by gap genes D. are activated by segment polarity genes E. are expressed in alternating stripes
Which control method would not be a suitable choice for killing Mycobacteria in a capped culture tube?
A. ultraviolet (germicidal) light B. gamma rays C. 160°C for 2 hours D. 121°C at 15 psi for 15 minutes E. All of these choices are correct.