The image shown above is an example of a(n) ____
a. random coil
b. leucine zipper
c. ? sheet
d. ? helix
e. ? polysaccharide
D
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The enzyme that has the ability to synthesize DNA from ribonucleic acid (RNA) is called:
a. DNA polymerase. b. RNAse. c. helicase. d. reverse transcriptase.
Which statement about agricultural diversity is true?
a. The loss of wild crop species hinders the development of new crop varieties. b. Wild crop seeds cannot be bred with existing varieties of crop seeds. c. Modern pesticides effectively kill pest species while protecting non-pest species. d. A single pest enemy species is more effective at pest control than multiple species.
____ are the signaling cells in nervous tissue
a. Neuroglia b. Dendrites c. Neurons d. Axons e. Nerve fibers
A technique called the ____________________ has revolutionized molecular biology because it is not as labor
intensive or time consuming as DNA cloning techniques. Fill in the blank(s) with the appropriate word(s).