Question 1

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

Accepted Answer

A) RNA polymerase 
B) phosphotransferase 
C) peptidyl transferase 
D) ribonuclease 
A) RNA polymerase 
B) phosphotransferase 
C) peptidyl transferase 
D) ribonuclease

Question 2

A(n) _____________ consists of proteins and small nuclear RNAs forming discrete particles that mediate splicing.

Accepted Answer

A) holoenzyme 
B) splicesome 
C) nucleosome 
D) ribosome 
E) chromosome
Blooms Level 1: Remember 
A) holoenzyme 
B) splicesome 
C) nucleosome 
D) ribosome 
E) chromosome
Blooms Level 1: Remember

Question 3

Transcription occurs in the ________ and translation occurs in the __________ of prokaryotic cells.

Accepted Answer

A) nucleus, cytoplasm 
B) cytoplasm, nucleus 
C) nucleus, nucleus 
D) cytoplasm, cytoplasm 
A) nucleus, cytoplasm 
B) cytoplasm, nucleus 
C) nucleus, nucleus 
D) cytoplasm, cytoplasm

Question 4

Protein synthesis begins with the amino acid ___________ as its codon is the one used as the "start codon" by nearly all organisms.

Accepted Answer

A) methionine 
B) arginine 
C) cysteine 
D) leucine 
A) methionine 
B) arginine 
C) cysteine 
D) leucine

Question 5

Mutations that abolish the function encoded by the wild-type allele are known as

Accepted Answer

A) null mutations. 
B) hypomorphic mutations. 
C) hypermorphic mutations. 
D) conditional mutations. 
E) neomorphic mutations. Blooms Level 2: Understand 
A) null mutations. 
B) hypomorphic mutations. 
C) hypermorphic mutations. 
D) conditional mutations. 
E) neomorphic mutations. Blooms Level 2: Understand

Question 6

Which of these is NOT a character of the genetic code?

Accepted Answer

A) There are the same number of codons as there are amino acids. 
B) The code is used by nearly every living organism. 
C) Some amino acids have multiple codons. 
D) The code is degenerate. 
A) There are the same number of codons as there are amino acids. 
B) The code is used by nearly every living organism. 
C) Some amino acids have multiple codons. 
D) The code is degenerate.

Question 7

Which of the following statements is true under ordinary conditions?

Accepted Answer

A) DNA and RNA last only for a short time within a cell. 
B) DNA lasts forever within a cell while RNA lasts only for a short time. 
C) RNA lasts forever within a cell while DNA lasts only for a short time. 
D) RNA and DNA both last forever within a cell. 
A) DNA and RNA last only for a short time within a cell. 
B) DNA lasts forever within a cell while RNA lasts only for a short time. 
C) RNA lasts forever within a cell while DNA lasts only for a short time. 
D) RNA and DNA both last forever within a cell.

Question 8

An anticodon is a physical component of a/an _______ molecule.

Accepted Answer

A) tRNA 
B) mRNA 
C) rRNA 
D) DNA 
A) tRNA 
B) mRNA 
C) rRNA 
D) DNA

Question 9

A bacterial (prokaryotic) ribosome is composed of ______ subunits.

Accepted Answer

A) 20S and 40S 
B) 30S and 50S 
C) 40S and 60S 
D) 50S and 70S 
A) 20S and 40S 
B) 30S and 50S 
C) 40S and 60S 
D) 50S and 70S

Question 10

How many different amino acids could be coded for using the synthetic mRNA sequence of (5' UGCUGCUGC 3')?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
A) 0 
B) 1 
C) 2 
D) 3

Question 11

Assume that for a given gene a mutation creates an allele that functions as a dominant negative.The gene codes for a protein that forms a trimer within the cell.If at least one of the subunits has the mutant structure the entire protein is inactivated.For a heterozygous individual, what percent of the trimers present in the cell will be inactive?

Accepted Answer

A) 100% 
B) 25% 
C) 50% 
D) 6.25% 
E) 12.5%
Blooms Level 4: Analyze 
A) 100% 
B) 25% 
C) 50% 
D) 6.25% 
E) 12.5%
Blooms Level 4: Analyze

Question 12

A neomorphic dominant mutation in the Antennapedia (Antp) gene of Drosophila causes

Accepted Answer

A) kinks to form in their tails. 
B) shortened tails. 
C) total loss of color vision. 
D) failure to assemble microtubules during mitosis. 
E) growth of a leg from the head region. Blooms Level 2: Understand 
A) kinks to form in their tails. 
B) shortened tails. 
C) total loss of color vision. 
D) failure to assemble microtubules during mitosis. 
E) growth of a leg from the head region. Blooms Level 2: Understand

Question 13

A mutation that changes a codon that originally coded for an amino acid into a stop codon is called a

Accepted Answer

A) frameshift mutation. 
B) missense mutation. 
C) silent mutation. 
D) nonsense mutation. 
A) frameshift mutation. 
B) missense mutation. 
C) silent mutation. 
D) nonsense mutation.

Question 14

The sequences within mRNA that are spliced out (removed) are called

Accepted Answer

A) extremes. 
B) exons. 
C) inclusions. 
D) introns. 
A) extremes. 
B) exons. 
C) inclusions. 
D) introns.

Question 15

The appearance of a novel phenotype resulting from the substitution of a single base pair might be due to

Accepted Answer

A) change in the amino acid sequence only. 
B) change in the amount of protein expressed. 
C) alteration in a gene that codes for a nontranslated RNA. 
D) change in the developmental time or location at which a gene is expressed. 
E) All of the choices are possible consequences of a single base pair substitution. Blooms Level 3: Apply 
A) change in the amino acid sequence only. 
B) change in the amount of protein expressed. 
C) alteration in a gene that codes for a nontranslated RNA. 
D) change in the developmental time or location at which a gene is expressed. 
E) All of the choices are possible consequences of a single base pair substitution. Blooms Level 3: Apply

Question 16

The (expressed) sequences within mRNA that code for gene products are called

Accepted Answer

A) extremes. 
B) exons. 
C) inclusions. 
D) introns. 
A) extremes. 
B) exons. 
C) inclusions. 
D) introns.

Question 17

A mutation that occurs when a base is inserted into or deleted from a DNA sequence, completely altering the subsequent amino acid sequence, is called a

Accepted Answer

A) frameshift mutation. 
B) missense mutation. 
C) silent mutation. 
D) nonsense mutation. 
A) frameshift mutation. 
B) missense mutation. 
C) silent mutation. 
D) nonsense mutation.

Question 18

Mutations that result in much less of a protein or a protein with limited function are known as

Accepted Answer

A) null mutations. 
B) hypomorphic mutations. 
C) hypermorphic mutations. 
D) conditional mutations. 
E) neomorphic mutations. Blooms Level 2: Understand 
A) null mutations. 
B) hypomorphic mutations. 
C) hypermorphic mutations. 
D) conditional mutations. 
E) neomorphic mutations. Blooms Level 2: Understand

Question 19

There are ______________ usually found in the genetic code.

Accepted Answer

A) 3 start codons and 1 stop codon 
B) 2 start codons and 2 stop codons 
C) 1 start codon and 3 stop codons 
D) 0 start codons and 4 stop codons 
A) 3 start codons and 1 stop codon 
B) 2 start codons and 2 stop codons 
C) 1 start codon and 3 stop codons 
D) 0 start codons and 4 stop codons

Question 20

Which of these is NOT a step in transcription?

Accepted Answer

A) replication 
B) initiation 
C) termination 
D) elongation 
A) replication 
B) initiation 
C) termination 
D) elongation

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

A(n) _____________ consists of proteins and small nuclear RNAs forming discrete particles that mediate splicing.

Transcription occurs in the and translation occurs in the __ of prokaryotic cells.

Protein synthesis begins with the amino acid ___________ as its codon is the one used as the "start codon" by nearly all organisms.

Mutations that abolish the function encoded by the wild-type allele are known as

Which of these is NOT a character of the genetic code?

Which of the following statements is true under ordinary conditions?

An anticodon is a physical component of a/an _______ molecule.

A bacterial (prokaryotic) ribosome is composed of ______ subunits.

How many different amino acids could be coded for using the synthetic mRNA sequence of (5' UGCUGCUGC 3')?

A neomorphic dominant mutation in the Antennapedia (Antp) gene of Drosophila causes

A mutation that changes a codon that originally coded for an amino acid into a stop codon is called a

The sequences within mRNA that are spliced out (removed) are called

The appearance of a novel phenotype resulting from the substitution of a single base pair might be due to

The (expressed) sequences within mRNA that code for gene products are called

A mutation that occurs when a base is inserted into or deleted from a DNA sequence, completely altering the subsequent amino acid sequence, is called a

Mutations that result in much less of a protein or a protein with limited function are known as

There are ______________ usually found in the genetic code.

Which of these is NOT a step in transcription?

Genetics: The Study of Biological Information

Mendels Principles of Heredity

Extensions to Mendels Laws

The Chromosome Theory of Inheritance

Linkage, Recombination, and the Mapping of Genes on Chromosomes

DNA Structure, Replication, and Recombination

Anatomy and Function of a Gene: Dissection Through Mutation

Digital Analysis of Genomes

Analyzing Genomic Information

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

Genetics of Complex Traits

Filters

Exam 8: Gene Expression: The Flow of Information From DNA to RNA to Protein

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

A(n) _____________ consists of proteins and small nuclear RNAs forming discrete particles that mediate splicing.

Transcription occurs in the ________ and translation occurs in the __________ of prokaryotic cells.

Protein synthesis begins with the amino acid ___________ as its codon is the one used as the "start codon" by nearly all organisms.

Mutations that abolish the function encoded by the wild-type allele are known as

Which of these is NOT a character of the genetic code?

Which of the following statements is true under ordinary conditions?

An anticodon is a physical component of a/an _______ molecule.

A bacterial (prokaryotic) ribosome is composed of ______ subunits.

How many different amino acids could be coded for using the synthetic mRNA sequence of (5' UGCUGCUGC 3')?

A neomorphic dominant mutation in the Antennapedia (Antp) gene of Drosophila causes

A mutation that changes a codon that originally coded for an amino acid into a stop codon is called a

The sequences within mRNA that are spliced out (removed) are called

The appearance of a novel phenotype resulting from the substitution of a single base pair might be due to

The (expressed) sequences within mRNA that code for gene products are called

A mutation that occurs when a base is inserted into or deleted from a DNA sequence, completely altering the subsequent amino acid sequence, is called a

Mutations that result in much less of a protein or a protein with limited function are known as

There are ______________ usually found in the genetic code.

Which of these is NOT a step in transcription?

Genetics: The Study of Biological Information

Mendels Principles of Heredity

Extensions to Mendels Laws

The Chromosome Theory of Inheritance

Linkage, Recombination, and the Mapping of Genes on Chromosomes

DNA Structure, Replication, and Recombination

Anatomy and Function of a Gene: Dissection Through Mutation

Digital Analysis of Genomes

Analyzing Genomic Information

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

Genetics of Complex Traits

Filters

Transcription occurs in the and translation occurs in the __ of prokaryotic cells.