In order to express eukaryotic genes in a bacterium, the ________ must first be removed.

A. enhancers
B. introns
C. exons
D. 3' poly A sequence


Answer: B

Biology & Microbiology

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Hydrogenation is a _____

a. manufacturing process that adds hydrogen atoms to carbohydrates b. natural process that that adds hydrogen atoms to carbohydrates c. manufacturing process that adds hydrogen atoms to oils d. natural process that removes hydrogen atoms from fats e. manufacturing process that removes hydrogen atoms from fats

Biology & Microbiology

The crown-of-thorns sea star, Acanthaster planci, preys on the flesh of live coral

If coral animals are attacked by these sea stars, then what actually provides nutrition to the sea star, and which chemical (besides the toxin within their nematocysts) do the corals rely on for protection? A) medusae; silica B) exoskeleton; calcium carbonate C) polyps; calcium carbonate D) polyps; silica

Biology & Microbiology

Darwin's hypothesis of common ancestry with branching descent explains:

a. the hierarchical patterns of similarity ob-served in nature. c. the history and pattern of life's diversity. b. varieties nested within species nesting within genera. d. All of the above.

Biology & Microbiology

Hormonal regulation of digestive functions is an example of the interaction between the digestive

system and which other system? a. nervous b. reproductive c. cardiovascular d. integumentary e. endocrine

Biology & Microbiology