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DNA Pre-Test Name: _________________________ SC.7.L.16.1 Understand and explain that every organism requires a set of instructions that specifies its traits, that this hereditary information (DNA) contains genes located in the chromosomes of each cell, and that heredity is the passage of these instructions from one generation to another. 1. Chromosomes are located in the _________ of the cell. A. Cell wall B. Cytoplasm C. Mitochondria D. Nucleus 2. Which of the following represent the four nucleotide components of DNA? A. A-T-C-U B. A-T-C-G C. T-U-C-G D. A-T-U-C 3. The following is strand of DNA. According to the rule of base-pairing which one of the answer choices would be complementary to this strand? ** TATGCA ** A. ATAGGT B. ATACCA C. ATACGT D. TATGCA 4. Where does replication occur in eukaryotic cells? A. Wherever there is DNA B. Only in the nucleus C. Only in the ribosome D. Only in the mitochondria 5. Replication is when... A. Proteins are made B. RNA is made from the DNA template C. Another copy of DNA is made D. DNA is made from the RNA template 6. A DNA molecule is shaped like a A. Long, thin rod. B. Twisted ladder. C. Straight ladder. D. Triple helix. 7. During DNA replication, adenine (A) always pairs with A. Guanine (G). B. Cytosine (C). C. Thymine (T). D. Adenine (A). 8. What forms a genetic code? A. the number of daughter cells in an organism B. the order of nitrogen bases along a gene C. the order of proteins along a gene D. the number of phosphates in a DNA strand 9. A DNA nucleotide is made up of 3 parts, which of the following is NOT a part A. Nitrogenous base B. Phosphate Group C. Deoxyribose Sugar D. Ribosome 10. The sides (or backbone) of a DNA molecule is made up of sugar molecules alternating with _____________ molecules A. Nitrogen bases B. Genes C. Phosphate D. Protein 11 – 17 Label the picture of a DNA molecule Use the word bank provided Adenine Guanine Thymine Cytosine Sugar Phosphate Group