DNA A. RNA B. DNA C. ADP D. ATP. A. adenine B. uracil C. guanine D. thymine. A. cell wall B. plasma membrane C. ribosomes D.
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1 NA Name: ate: 1. Which molecule has the shape of a double-stranded helix? A. RNA. NA. AP. ATP 2. In molecules of NA, which nitrogenous base bonds with adenine A. adenine. uracil. guanine. thymine 3. Within a cell, NA is chiefly found in the A. cell wall. plasma membrane. ribosomes. chromosomes 4. Which nitrogenous base is normally present in NA but absent from RNA? A. adenine. cytosine. thymine. guanine 5. In a NA molecule, the number of guanine nucleotides will most likely equal the number of A. adenine nucleotides. thymine nucleotides. cytosine nucleotides. ribose nucleotides 6. ased on structure, in what way do NA molecules differ from RNA molecules? A. RNA contains the base uracil; NA does not contain uracil.. NA is composed of two chains of nucleotides; RNA is composed of three chains of nucleotides.. RNA is helical; NA is branched.. NA is composed of four different bases; RNA is composed of three different bases. page 1
2 NA 7. Within a living cell, which organelles are necessary for process 2 to occur? A. centrioles. lysosomes. Golgi bodies. ribosomes 8. Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown. Present in the nucleus of a cell A. NA molecules, only. RNA molecules, only. oth NA and RNA molecules. Neither NA nor RNA molecules 9. Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown. arry genetic information from the nucleus to the ribosomes A. NA molecules, only. RNA molecules, only. oth NA and RNA molecules. Neither NA nor RNA molecules 10. eoxyribonucleic acid molecules serve as a template for the synthesis of molecules of A. amino acids. carbohydrates. messenger RNA. lipids 11. A molecule of NA is a polymer composed of A. glucose. amino acids. fatty acids. nucleotides page 2
3 NA 12. If a portion of a messenger RNA molecule contains the base sequence A A U, the corresponding transfer RNA base sequence is A. A A U. G G T. T T. U U A 13. ase your answer(s) to the following question(s) on the diagram below, which represents some biochemical reactions involved in a cellular process, and on your knowledge of biology. What is an example of a molecule produced by this type of process? A. glucose. glycogen. a fatty acid. a protein page 3
4 NA 14. Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown. omposed of nitrogenous bases, sugar molecules, and phosphate units. A. NA molecules, only. RNA molecules, only. oth NA and RNA molecules 15. Which is a characteristic of mutations? A. They usually produce dominant traits.. They usually are expressed in the next generation.. They meet a species need.. They occur randomly. 16. Specific proteins produced in a cell are directly related to the A. number of mitrochondria in the cell. type of ribosomes in the cell. sequence of sugars and phosphates in the cell. sequence of nucleotides in the NA of the cell 17. Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown. May attach to ribosomes A. NA molecules, only. RNA molecules, only. oth NA and RNA molecules page 4
5 NA 18. If strand represents messenger RNA, it would transport the genetic code from the A. ribosome to the nucleus. nucleus to the ribosome. mitochondria to the nucleus. nucleus to the mitochondria 19. ase your answer(s) to the following question(s) on the diagram below, which contains arrows representing different processes occurring in a cell, and on your knowledge of biology. Which processes occur in the nucleus? A. 1 and 2. 2 and 3. 3 and 4. 4 and 5 page 5
6 Acces format version c EducAide Software Licensed for use by Problem-Attic NA 02/01/ A A
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