What oxidizing agent is used to temporarily store high energy electrons harvested from glucose molecules in a series of gradual steps in the cytoplasm?
A. ADP
B. FADH2
C. NAD+
D. oxygen
Answer: C
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When ____ is incorporated into DNA or RNA during synthesis, it will create a(n) ____
a. carbon; base analog b. oxygen; base analog c. 5-bromouracil; nucleotide substitution mutation d. 5-bromouracil; frameshift mutation e. oxygen; nucleotide substitution mutation
1) The cause of cri-du-chat syndrome. _____ 2) The alteration of a chromosome that involves the addition of a piece of chromosome. _____ 3) A chart showing the genetic connections among individuals in a family. _____ 4) A situation in which both alleles for a certain trait produce functional proteins. ______ 5) A condition in which someone has different alleles for the same gene. _____
A) Codominance B) Duplication C) Incomplete dominance D) Heterozygous E) Pedigree F) Phenotype G) Gene H) Deletion I) Autosomes J) Linkage
Most sperm cells die in the vagina when entering the female's body because
A) the sperm cannot pass through the mucus. B) the female's reproductive tract is protected by digestive enzymes. C) of the low pH of the vagina. D) the sperm cells have not yet been activated to swim. E) macrophages from the female's immune system destroy all nonself cells.
The lac operon in Escherichia coli
A) prevents lactose-utilizing enzymes from being expressed when lactose is absent from the environment. B) prevents lactose intolerance. C) prevents lactose-utilizing enzymes from being expressed when lactose is present in the environment. D) promotes the expression of lactose-utilizing enzymes when lactose is absent from the environment.