During elongation, ribosomes catalyze

formation of ____ between the amino acid and
the growing polypeptide.



a. a hydrogen bond
b. a peptide bond
c. a polar covalent bond
d. a non-polar covalent bond
e. a sulfur bond


B

Biology & Microbiology

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Which of these structures produces a hormone that activates secretion of enzymes within it?

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An atom that carries a charge is called a(n) ____

a. ion b. molecule c. compound d. element e. microelement

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DNA is organized and arranged in the nucleus as

A) mitotic spindles. B) chromosomes. C) histones. D) the nucleolus. E) ribosomes.

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A factory with an office that controls the information sent to separate rooms for each of the manufacturing and shipping processes would be analogous to

a. a virus. c. a prokaryotic cell without a nucleus. b. a prokaryotic cell with a nucleus. d. a eukaryotic cell with a nucleus.

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