How many naturally occurring amino acids are used by ribosomes to construct proteins?

A) 46
B) 64
C) 3
D) 20
E) 10


D

Biology & Microbiology

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If a hypothetical protein is 25 amino acids long, how many nucleotides were there in the gene that

coded for this protein? A. 25 D. 100 B. 50 E. 150 C. 75

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In a woman’s monthly cycle, the hormone _____ is released when estrogen reaches a peak

a. luteinizing hormone b. oxytocin c. progesterone d. testosterone e. human chorionic gonadotrophin

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Destruction of which biome would result in the greatest loss of biodiversity?

A. grassland B. tropical rain forest C. desert D. taiga forest E. savanna

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The glycosidic bonds in peptidoglycan are cleaved by

a. ampicillin. b. lysozyme. c. tetracycline. d. Proteinase K.

Biology & Microbiology