BIO205-Exam Two-2020-Previous Exam Used-harford community college-Microbiology (GL) (BIO 2, Exams of Biology

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1} Amino acids and the tRNAs that carry them enter the ribosome at the __ site. 2) You have a boil on your skin, which you sent off for a lab analysis. The boil was infected with a type of microbe that has a circular chromosome and two membranes. It is a (an): a. a. Gram-Negative Bacterium b. b. Eukaryote c. ¢. Virus d. d. Gram-Positive Bacterium e. e. Prion 3) What type of virus is composed of just one type of capsomere with no envelope? It has a helical shape. a. Enveloped Virus b. Non-Enveloped Polyhedral Virus c. Bacteriophage d. Non-Enveloped Helical Virus 4) Which of the following statements is true regarding the differences between RNA and DNA? a. RNA consists of four nucleotides, while DNA consists of six nucleotides. b. RNA is composed of a single helix, while DNA has a double helix. c. RNA consists of five nucleotides, while DNA consists of six nucleotides. d. RNA is composed of a double helix, while DNA has a single helix.2