________ is a hydroxyl group
A) –NH2
B) –OH
C) –COOH
D) –H
B
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Which of the following traits is not characteristic of insects?
a. six legs b. three-part body plan c. complete digestive system d. most species are hermaphrodites
To create transgenic mice, DNA is injected into
A) a pronucleus of a zygote. B) the cytoplasm of a zygote. C) the nucleus after the pronuclei have fused. D) a pronucleus of one cell from an embryo.
All of the following are or can be produced by microbes except
A) consumer products like biodegradable plastics. B) food like chocolate. C) electronics like computer memory. D) biofuels like diesel. E) drugs like penicillin.
Disinfectants known as (alcohols/oxidizers/aldehydes) have the chemical group -CHO, which reacts with and damages both proteins and nucleic acids.
Fill in the blank(s) with the appropriate word(s).