Essay on Black8e Ch07 Tb

Submitted By Yana-Konyukhova
Words: 4541
Pages: 19

Chapter 7: Microbial Genetics

Question Type: Multiple Choice

1) A linear sequence of DNA nucleotides which provides the genetic information for a single characteristic is a _____.

a) chromosome
b) plasmid
c) gene
d) base pair

Answer: c

Difficulty: Easy
Learning Objective 1: LO 7.1 Explain the relationship between DNA, genes, and proteins whose structures are created from genetic instructions.
Section Reference 1: Section 7.1 An Overview of Genetic Processes

2) Genes with different information at the same locus are called _____.

a) chromosomes
b) homologs
c) plasmids
d) alleles

Answer: d

Difficulty: Easy
Learning Objective 1: LO 7.1 Explain the relationship between DNA, genes, and proteins whose structures are created from genetic instructions.
Section Reference 1: Section 7.1 An Overview of Genetic Processes

3) A plasmid is a/an _____.

a) extrachromosomal piece of DNA
b) chromosomal site to which genetic activity can be traced
c) body found in the cytoplasm that directs protein synthesis
d) molecule that carries the genetic message of the chromosomal DNA

Answer: a

Difficulty: Easy
Learning Objective 1: LO 7.1 Explain the relationship between DNA, genes, and proteins whose structures are created from genetic instructions.
Section Reference 1: Section 7.1 An Overview of Genetic Processes

4) A permanent alteration in the DNA of an organism is called a/n:

a) mutation
b) hereditary marker
c) replicon
d) allele

Answer: a

Difficulty: Easy
Learning Objective 1: LO 7.1 Explain the relationship between DNA, genes, and proteins whose structures are created from genetic instructions.
Section Reference 1: Section 7.1 An Overview of Genetic Processes

5) Which nitrogenous base is not normally found in DNA?

a) Guanine
b) Thymine
c) Uracil
d) Adenine

Answer: c

Difficulty: Easy
Learning Objective 1: LO 7.2 Describe the way in which an antiparallel, double-stranded DNA molecule undergoes replication and the role of each enzyme involved in this process.
Section Reference 1: Section 7.2 DNA Replication

6) In DNA, the base adenine always pairs with what other base?

a) guanine
b) adenine
c) uracil
d) thymine

Answer: d

Difficulty: Easy
Learning Objective 1: LO 7.2 Describe the way in which an antiparallel, double-stranded DNA molecule undergoes replication and the role of each enzyme involved in this process.
Section Reference 1: Section 7.2 DNA Replication

7) Replication results in the formation of what type of new molecule?

a) DNA
b) RNA
c) Protein
d) Lipid

Answer: a

Difficulty: Easy
Learning Objective 1: LO 7.2 Describe the way in which an antiparallel, double-stranded DNA molecule undergoes replication and the role of each enzyme involved in this process.
Section Reference 1: Section 7.2 DNA Replication

8) Transcription results in the formation of what type of new molecule?

a) DNA
b) RNA
c) Protein
d) lipid

Answer: b

Difficulty: Easy
Learning Objective 1: LO 7.3 Describe the transcription and translation processes and the roles of the three types of RNA molecules needed for protein synthesis.
Section Reference 1: Section 7.3 Protein Synthesis

9) The process of ________ results in the synthesis of a new protein.

a) replication
b) transcription
c) translation
d) transversion

Answer: c

Difficulty: Easy
Learning Objective 1: LO 7.3 Describe the transcription and translation processes and the roles of the three types of RNA molecules needed for protein synthesis.
Section Reference 1: Section 7.3 Protein Synthesis

10) Reverse transcription occurs when:

a) RNA is used as a template to produce DNA
b) DNA is used as a template to produce RNA
c) Protein is used as a template to produce RNA
d) RNA is used as a template to produce protein

Answer: a

Difficulty: Medium
Learning Objective 1: LO 7.1 Explain the relationship between DNA, genes, and proteins whose structures are created from genetic instructions.
Section Reference 1: Section 7.1 An Overview of Genetic Processes

11) Reverse transcription