Which one of the following is the most efficient long-term source of ATP for muscle cells?
A) creatine phosphate
B) ready-made ATP in the cell
C) aerobic respiration of glucose
D) fermentation of glucose
E) aerobic respiration of proteins
C
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What percentage of alleles will be shared by certain siblings due to the law of independent assortment?
A) Monozygotic twins will have no alleles in common. B) Monozygotic twins will have about 50% of their alleles in common. C) Two typical siblings will have about 50% of their alleles in common. D) Dizygotic twins will have 100% of their alleles in common.
Which of the following is an example of an eating disorder?
A. Eating enough to cause obesity. B. Anorexia nervosa. C. Bulimia. D. All of these answers are true.
In bacterial toxins of the A-B type, the A fragment is responsible for (1) __and the B fragment is responsible for (2)__.
A. (1)Toxin activity (2) binding to cells B. (1) Fever production (2) binding to cells C. (1)Attaching to surfaces (2) interfering with nerve function D. (1) Binding to cells (2) stopping protein synthesis E. (1) killing phagocytic cells (2) lysing host cells
The two strands of a double helix of DNA are linked by what kind of bond?
A) sugar-phosphate linkages B) base-phosphate linkages C) hydrogen bonds between sugars and phosphates D) hydrogen bonds between bases E) sugar-base linkages