Horizontal gene transfer has been thoroughly documented for genes involved in
A) DNA replication and repair.
B) virulence and metabolic functions.
C) only very few processes.
D) translation.
Answer: B
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Mycobacterium and Nocardia are distinguished from other bacteria by the ________ stain.
A. basic B. Gram C. acid-fast D. endospore E. methylene blue
Oil hydrogenation can produce a product, such as vegetable shortening or margarine, that is spreadable at room temperature because of an unusual bond that does not occur naturally. What is the name of this category of lipid?
A) Saturated fat B) Healthy fat C) Trans fat D) Cholesterol
What information is used by the ribosome to assemble the amino acid sequence of a polypeptide?
A) Base sequence of mRNA B) Base sequence of DNA C) Base sequence of tRNA D) Base sequence of the chromosome
Which postulate of natural selection is deliberately enforced by dog breeders using artificial selection?
a. Individuals in a population vary. b. Survival and reproduction are not determined by chance. c. Traits are passed from parent to offspring. d. Some individuals fail to survive and reproduce.