Ch. 9 Questions and Answers
1. ________ is the study of the inheritance, or heredity, of living things.
a. DNA Code
b. Replicon
*c. Genetics
d. Translation
2. ______ is the sum total of genetic material of a cell.
a. Chromosome
b. Cell Level
c. DNA Code
*d. Genome
3. ________ is the basic unit of DNA structure.
a. DNA Code
b. Replicon
*c. Nucleotide
d. Genome
4. _________ is a mutation that changes an amino acid-producing codon into a stop codon, leading to premature termination of a protein.
a. Back mutations
b. Silent mutations
c. Missuse mutations
*d. Nonsense mutations
5. Sickle cell anemia is caused by what kind of mutation?
a. Back Mutation
b. Silent Mutation
c. Nonsense Mutation
*d. Missense Mutation
6. Rifamyicins, Tetracyclines and Aminoglycosides are classes of antibiotics that are effective because they:
*a. interfere with transcription and translation processes in microorganisms
b. catalyze transcription and translation processes in microorganisms
c. interfere with transcription processes in microorganisms
d. catalyze with translation processes in microorganisms
7. The Ames Test measures:
*a. the mutagenicity of chemicals by determining the ability of a chemical to induce mutations in bacteria.
b. the genetic material contained in 'naked' DNA fragments from a donor cell to a competent recipient cell
c. the mutagenicity of organic molecules by determining the ability of molecules to induce mutations in bacteria
d. the severity of Sickle Cell Anemia
8. Cystic Fibrosis is cased by what kind of mutation?
a. Missense Mutation
*b. Nonsense Mutation
c. Silent Mutation
d. Back Mutation
9. As a general rule, the template strand on DNA will always begin with?
a. TAC
*b. AUG
c. ATG
d. UAC
10. The base pairs are held together primarily by?
a. covalent bonds
*b. hydrogen bonds
c. ionic bonds
d. gyrases
11. The replication process includes
a. uncoil the parent DNA molecule
b. unzip the hydrogen bonds between the base pairs
c. synthesize two new strands
*d. all of these are correct
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