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Name Raina Bonilla Date 12/16/2021 Choose best answer, darken appropriate ci

1. DNA is composed of nucleotides. Which of the following best describes the components of a nucleotide? d. deoxyribose, a phosphate groups and a nitrogenous base
2. What type of bonds joins one strand of DNA to another strand of DNA, forming a double helix? b. hydrogen bonds
3. Which scientist(s) identified DNA as the genetic material of inheritance and determined its structure? b. Watson and Crick
4. Which of the following statements is false? d. DNA replicates conservative
Questions #5-7 refer to the following: a. uracil nucleotide b. guanine nucleotide c. translation d. transcription
5. DNA → RNA d
6. found only in RNA a
7. occurs in the cytoplasm c
8. In gel electrophoresis, DNA fragments migrate toward the ? electrode; the ? the fragment, the faster it moves through the gel. c. positive; smaller
9. DNA is NOT found in b. trimmed hair
10. Electrophoresis sends an electric current through a. buffer
11. The end products of translation is/are a. polypeptide
12. All of the following combinations of nucleotides are examples of normal base pairing except: c. thymine RNA to a adenine DNA
13. The genetic instructions for forming a polypeptide chain are carried to the ribosome by the c. mRNA
14. The DNA of an elephant and the DNA of a cherry tree will probably differ in all of the following respects except the b. kinds of nucleotides utilized in forming DNA
Use the following answers for # 15-18 a. transcription b. translation c. DNA methylation d. histone
15. The addition of groups to certain bases f DNA after DNA synthesis; this is thought to be an important control mechanism for gene expression c
16. The synthesis of polypeptides from the genetic information coded in mRNA b
17. The synthesis of RNA from a DNA template a
18. The proteins around which the DNA molecule tightly wraps in a eukaryotic chromosome. d
19. A goat can produce milk containing the same polymers present in the silk produced by spiders when particular genes from a spider are inserted into the goat’s genome. Which of the following reasons describes why this is possible? c. the processes of transcription and translation in the cells of spiders and goats are fundamentally similar.
20. Restriction enzymes are generally used in the laboratory for which of the following reasons? d. cutting DNA molecules at specific locations
21. A particular triplet code of DNA is AAA. What is the anti-codon? a. AAA
22. Gel electrophoresis can also be used for which of the following purposes? d. to separate out the proteins in a mixture
23. When the electric field was applied, the fragments of DNA in each of the 3 samples migrated to different locations along the gel because the fragments differed in c. size
24. How many sites of DNA were cut by the particular restriction enzyme used below? 6 sites
Use the following to answer #25-27 a. tRNA b. mRNA c. rRNA
25. travels out of nucleus b
26. loosely binds to free amino acids in the cytoplasm a
27. combines with proteins to assemble amino acids in correct order c
Created by: reina_
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