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17. A CMP contains a cytosine and a phosphate group a cytosine, a ribose, and a phosphate group a cytosine, a deoxyribose, and a phosphate group a. b. c. d. a cytosine, a methionine, and a phosphate group 18. Two strands of DNA are held together by many a. Phosphodiester bonds b. Hydrogen bonds c. Hydrophobic interactions d. All of these 19. For a double-stranded DNA, which of the following base ratios always equal to 12 a. (A+T(G+C) b. (A+Gy (C+T) c. A/C d. G/T e. None of them 20. A double-stranded DNA is 10,000 base pairs (bps), what is the length of this DNA molecule? a. 34,000 nm b. 3,400 nm c. 340 nm d. 34 nm 21. When do the two sister chromatids of each chromosome separate during mitosis? a. S phase b. Prophase c. Metaphase d. Anaphase 22. During metaphase, spindle fibers attach to the of each chromosome? a. Centromere b. Telomere c. Long arm d. Short arm e. Anywhere 23. In a DNA molecule, G and C are paired by a. A phosphodiester bond b. One hydrogen bond c. Two hydrogen bonds d. Three hydrogen bonds e. None of these 24. In eukaryotes, DNA is replicated during a. S stage b. G? stage c. Gz stage
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Answer #1

17. Ans..b

18. Ans...b

19. Ans...a

20. Ans... d.. On image

21. Ans..c

22. Ans.. a

23. Ans.. d

24. Ans... G1 stage

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