Question 1

Signal-recognition particle RNA is involved in directing the ribosome-mRNA-polypeptide complex to the rough ER.

Accepted Answer

A) True 
 B)False

Question 2

During protein synthesis, ribosomes:

Accepted Answer

A)  attach to the mRNA molecule and travel along its length to produce a polypeptide 
B)  attach to the DNA molecule and travel along its length to produce an mRNA molecule 
C)  translate mRNA into tRNA 
D)  transcribe DNA into mRNA 
E)  translate tRNA into protein 
A)  attach to the mRNA molecule and travel along its length to produce a polypeptide 
B)  attach to the DNA molecule and travel along its length to produce an mRNA molecule 
C)  translate mRNA into tRNA 
D)  transcribe DNA into mRNA 
E)  translate tRNA into protein

Question 3

A sequence of bases located upstream from a reference point occurs toward the:

Accepted Answer

A)  3′ end of the amino acid sequence 
B)  5′ end of the mRNA sequence 
C)  3′ end of the mRNA sequence 
D)  5′ end of the transcribed DNA strand 
E)  carboxyl end of the amino acid sequence 
A)  3′ end of the amino acid sequence 
B)  5′ end of the mRNA sequence 
C)  3′ end of the mRNA sequence 
D)  5′ end of the transcribed DNA strand 
E)  carboxyl end of the amino acid sequence

Question 4

Frameshift mutations result from the:

Accepted Answer

A)  substitution of one base pair for another 
B)  substitution of more than one base pair 
C)  insertion or deletion of one or two base pairs 
D)  substitution of a stop codon for an amino acid-specifying codon 
E)  substitution of a start codon for an amino acid codon 
A)  substitution of one base pair for another 
B)  substitution of more than one base pair 
C)  insertion or deletion of one or two base pairs 
D)  substitution of a stop codon for an amino acid-specifying codon 
E)  substitution of a start codon for an amino acid codon

Question 5

A single nucleotide substitution within a gene is associated with type 1 diabetes and a decrease in insulin secretion. What type of mutation is this? What type of protein (ion channel, hormone, peptide/hormone channel, peptide/hormone pump) is affected?

Accepted Answer

This is a missense mutation that likely

Question 6

What conclusions did Beadle and Tatum reach in their studies of Neurospora ?

Accepted Answer

A)  Each mutant gene affected three enzymes. 
B)  Each mutant gene affected a pair of enzymes. 
C)  Each mutant gene affected only one enzyme. 
D)  Mutant genes had no effect on the enzymes produced by the cells. 
E)  Each mutant gene affected as many enzymes as were present in a particular metabolic pathway. 
A)  Each mutant gene affected three enzymes. 
B)  Each mutant gene affected a pair of enzymes. 
C)  Each mutant gene affected only one enzyme. 
D)  Mutant genes had no effect on the enzymes produced by the cells. 
E)  Each mutant gene affected as many enzymes as were present in a particular metabolic pathway.

Question 7

Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes.

Accepted Answer

A)  DNA polymerase 
B)  DNA-dependent RNA polymerase 
C)  RNA polymerase 
D)  primase 
E)  reverse transcriptase 
A)  DNA polymerase 
B)  DNA-dependent RNA polymerase 
C)  RNA polymerase 
D)  primase 
E)  reverse transcriptase

Question 8

RNA interference is a process by which noncoding RNA molecules regulate gene expression.

Accepted Answer

A) True 
 B)False

Question 9

Uracil forms a complementary pair with ____ in RNA and ____ in DNA.

Accepted Answer

A)  adenine; adenine 
B)  adenine; thymine 
C)  thymine; thymine 
D)  thymine; adenine 
E)  uracil; uracil 
A)  adenine; adenine 
B)  adenine; thymine 
C)  thymine; thymine 
D)  thymine; adenine 
E)  uracil; uracil

Question 10

Figure 13-2 ​
 
In the accompanying figure, the portion of the molecule containing the anticodon is indicated by the label:

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 11

Match between columns
                        Premises: helps to deliver the ribosome-mRNA-polypeptide complex to the rough ER

Accepted Answer

The Answer of lncRNA and SRP RNA and piRNA and is...

Question 12

Figure 13-3
 
Refer to the accompanying figure. The component labeled as B is:

Accepted Answer

A)  DNase. 
B)  DNA polymerase. 
C)  RNA primase. 
D)  RNA polymerase. 
E)  reverse transcriptase. 
A)  DNase. 
B)  DNA polymerase. 
C)  RNA primase. 
D)  RNA polymerase. 
E)  reverse transcriptase.

Exam 13: Gene Expression

Signal-recognition particle RNA is involved in directing the ribosome-mRNA-polypeptide complex to the rough ER.

During protein synthesis, ribosomes:

A sequence of bases located upstream from a reference point occurs toward the:

Frameshift mutations result from the:

A single nucleotide substitution within a gene is associated with type 1 diabetes and a decrease in insulin secretion. What type of mutation is this? What type of protein (ion channel, hormone, peptide/hormone channel, peptide/hormone pump) is affected?

What conclusions did Beadle and Tatum reach in their studies of Neurospora ?

Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes.

RNA interference is a process by which noncoding RNA molecules regulate gene expression.

Uracil forms a complementary pair with ____ in RNA and ____ in DNA.

Figure 13-2 ​ In the accompanying figure, the portion of the molecule containing the anticodon is indicated by the label:

Figure 13-3 Refer to the accompanying figure. The component labeled as B is:

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

Uracil forms a complementary pair with in RNA and in DNA.

Figure 13-2 In the accompanying figure, the portion of the molecule containing the anticodon is indicated by the label: