Uridine is a nucleotide in DNA.

a. true
b. false

Ans: b. false

Biology & Microbiology

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The enzyme that catalyzes the initial processing of miRNAs in the nucleus is:

A. Drosha. B. Dicer. C. Argonaute. D. RNase A.

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The APC/C polyubiquinates the protein securin in order to stitch epithelial cells together.

a. true b. false

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You discover a new particle. It has only RNA as a nucleic acid and lacks both a membrane and cytoplasm. This particle is a(n)

A) virus. B) archaea. C) prion. D) fungus. E) bacteria.

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All of these are somatic cells except:

A) heart cells. B) sperm cells. C) kidney cells. D) brain cells. E) skin cells.

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