Question 1

Nonprotein coding pieces of pre-mRNA that are removed during RNA splicing are called ________.

Accepted Answer

A)  introns 
B)  exons 
C)  SNPs 
D)  promoters 
E)  poly(
A)  tails 
A)  introns 
B)  exons 
C)  SNPs 
D)  promoters 
E)  poly(
A)  tails A

Question 2

Which of the following is the most commonly used stop codon in most mRNA molecules?

Accepted Answer

A)  UGA 
B)  AUG 
C)  AAA 
D)  GAA 
E)  CAG 
A)  UGA 
B)  AUG 
C)  AAA 
D)  GAA 
E)  CAG A

Question 3

Why is mRNA a good intermediate for translation?

Accepted Answer

mRNA is a good intermediate because it must leave the nucleus and go to the cytoplasm to direct translation. DNA is the genetic code and cannot leave the nucleus and risk degradation. So, mRNA can carry the DNA information to the cytoplasm without causing any risk of harm to the original DNA molecule.

Question 4

Which type of RNA molecules transport amino acids to the ribosome during translation?

Accepted Answer

A)  rRNA 
B)  tRNA 
C)  siRNA 
D)  mRNA 
E)  miRNA 
A)  rRNA 
B)  tRNA 
C)  siRNA 
D)  mRNA 
E)  miRNA

Question 5

Which of the following is NOT a function performed in the nucleus?

Accepted Answer

A)  Storing genes on chromosomes 
B)  Producing regulatory factors 
C)  Packaging proteins and transport them around the cell 
D)  Producing mRNA 
E)  DNA replication 
A)  Storing genes on chromosomes 
B)  Producing regulatory factors 
C)  Packaging proteins and transport them around the cell 
D)  Producing mRNA 
E)  DNA replication

Question 6

Why is it beneficial for the genetic code to be redundant?

Accepted Answer

Because there are several codons that co

Question 7

Which of the following is the typical start codon in most mRNA molecules?

Accepted Answer

A)  UGA 
B)  AUG 
C)  AAA 
D)  GAA 
E)  CAG 
A)  UGA 
B)  AUG 
C)  AAA 
D)  GAA 
E)  CAG

Question 8

Which type of RNA molecule contains the genetic code of a gene that is read by ribosomes during translation?

Accepted Answer

A)  rRNA 
B)  tRNA 
C)  siRNA 
D)  mRNA 
E)  miRNA 
A)  rRNA 
B)  tRNA 
C)  siRNA 
D)  mRNA 
E)  miRNA

Question 9

Synthesis of a protein from an mRNA molecule is called ________.

Accepted Answer

A)  transcription 
B)  translation 
C)  transformation 
D)  polymerization 
E)  polyadenylation 
A)  transcription 
B)  translation 
C)  transformation 
D)  polymerization 
E)  polyadenylation

Question 10

What enzyme separates strands of DNA during DNA replication to make DNA single-stranded so it can be copied?

Accepted Answer

A)  DNA primase 
B)  DNA polymerase 
C)  DNA helicase 
D)  DNA ligase 
E)  Reverse transcriptase 
A)  DNA primase 
B)  DNA polymerase 
C)  DNA helicase 
D)  DNA ligase 
E)  Reverse transcriptase

Question 11

Which organelles form the site of ATP production by aerobic cellular respiration?

Accepted Answer

A)  Lysosomes 
B)  Mitochondria 
C)  Ribosomes 
D)  Golgi 
E)  Rough endoplasmic reticulum 
A)  Lysosomes 
B)  Mitochondria 
C)  Ribosomes 
D)  Golgi 
E)  Rough endoplasmic reticulum

Question 12

Which of the following is a characteristic of smooth endoplasmic reticulum (SER) but not rough endoplasmic reticulum (RER)?

Accepted Answer

A)  Protein synthesis 
B)  Sending vesicles to the Golgi that contain proteins that are either secreted or become part of the plasma membrane 
C)  Steroid synthesis 
D)  Drug and alcohol detoxification 
E)  Steroid synthesis and drug and alcohol detoxification 
A)  Protein synthesis 
B)  Sending vesicles to the Golgi that contain proteins that are either secreted or become part of the plasma membrane 
C)  Steroid synthesis 
D)  Drug and alcohol detoxification 
E)  Steroid synthesis and drug and alcohol detoxification

Question 13

What is the role of the Golgi apparatus in cellular function?

Accepted Answer

A)  Protein packaging 
B)  Replication of DNA 
C)  Protecting the integrity of the cell's shape 
D)  Filling the cell space with fluid 
E)  mRNA synthesis 
A)  Protein packaging 
B)  Replication of DNA 
C)  Protecting the integrity of the cell's shape 
D)  Filling the cell space with fluid 
E)  mRNA synthesis

Question 14

Which part of a gene codes for the protein?

Accepted Answer

A)  Promoter 
B)  Exon 
C)  Intron 
D)  Enhancer 
E)  Transcription factor 
A)  Promoter 
B)  Exon 
C)  Intron 
D)  Enhancer 
E)  Transcription factor

Question 15

Which of the following enzymes is a component of the large ribosomal subunit and catalyzes the formation of peptide bonds between an amino acid attached to a peptidyl-tRNA and an amino acid from an aminoacyl-tRNA?

Accepted Answer

A)  Reverse transcriptase 
B)  DNA polymerase 
C)  Peptidyl transferase 
D)  DNA ligase 
E)  β-galactosidase 
A)  Reverse transcriptase 
B)  DNA polymerase 
C)  Peptidyl transferase 
D)  DNA ligase 
E)  β-galactosidase

Question 16

Addition of a poly(A) tail to an mRNA molecule ________.

Accepted Answer

A)  allows the mRNA to be recognized by ribosomes during translation 
B)  allows mRNA molecules to be more stable in the cytoplasm 
C)  results in removal of introns 
D)  only occurs in bacteria 
E)  is an important step in translation 
A)  allows the mRNA to be recognized by ribosomes during translation 
B)  allows mRNA molecules to be more stable in the cytoplasm 
C)  results in removal of introns 
D)  only occurs in bacteria 
E)  is an important step in translation

Question 17

Which is NOT true of prokaryotes?

Accepted Answer

A)  They contain ribosomes. 
B)  Their cells contain a true nucleus. 
C)  Their genes contain exons. 
D)  They include bacteria. 
E)  They are single-celled organisms. 
A)  They contain ribosomes. 
B)  Their cells contain a true nucleus. 
C)  Their genes contain exons. 
D)  They include bacteria. 
E)  They are single-celled organisms.

Question 18

________ bind to mRNA and tRNA during translation and allow for polypeptides to be synthesized.

Accepted Answer

A)  Chloroplasts 
B)  Ribosomes 
C)  Nuclei 
D)  RNA polymerases 
E)  Chromosomes 
A)  Chloroplasts 
B)  Ribosomes 
C)  Nuclei 
D)  RNA polymerases 
E)  Chromosomes

Question 19

Briefly describe how the experiments performed by Frederick Griffith provided evidence of DNA as the genetic material.

Accepted Answer

Griffith used two strains of the bacteri

Question 20

In a nucleotide of DNA, which carbon of the deoxyribose sugar binds to the base?

Accepted Answer

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

Nonprotein coding pieces of pre-mRNA that are removed during RNA splicing are called ________.

Which of the following is the most commonly used stop codon in most mRNA molecules?

Why is mRNA a good intermediate for translation?

Which type of RNA molecules transport amino acids to the ribosome during translation?

Which of the following is NOT a function performed in the nucleus?

Why is it beneficial for the genetic code to be redundant?

Which of the following is the typical start codon in most mRNA molecules?

Which type of RNA molecule contains the genetic code of a gene that is read by ribosomes during translation?

Synthesis of a protein from an mRNA molecule is called ________.

What enzyme separates strands of DNA during DNA replication to make DNA single-stranded so it can be copied?

Which organelles form the site of ATP production by aerobic cellular respiration?

Which of the following is a characteristic of smooth endoplasmic reticulum (SER) but not rough endoplasmic reticulum (RER)?

What is the role of the Golgi apparatus in cellular function?

Which part of a gene codes for the protein?

Which of the following enzymes is a component of the large ribosomal subunit and catalyzes the formation of peptide bonds between an amino acid attached to a peptidyl-tRNA and an amino acid from an aminoacyl-tRNA?

Addition of a poly(A) tail to an mRNA molecule ________.

Which is NOT true of prokaryotes?

________ bind to mRNA and tRNA during translation and allow for polypeptides to be synthesized.

Briefly describe how the experiments performed by Frederick Griffith provided evidence of DNA as the genetic material.

In a nucleotide of DNA, which carbon of the deoxyribose sugar binds to the base?

The Biotechnology Century and Its Workforce

Recombinant Dna Technology and Genomics

Proteins As Products

Microbial Biotechnology

Plant Biotechnology

Animal Biotechnology

Dna Fingerprinting and Forensic Analysis

Bioremediation

Aquatic Biotechnology

Medical Biotechnology

Biotechnology Regulations

Ethics and Biotechnology

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Exam 2: An Introduction to Genes and Genomes

Nonprotein coding pieces of pre-mRNA that are removed during RNA splicing are called ________.

Which of the following is the most commonly used stop codon in most mRNA molecules?

Why is mRNA a good intermediate for translation?

Which type of RNA molecules transport amino acids to the ribosome during translation?

Which of the following is NOT a function performed in the nucleus?

Why is it beneficial for the genetic code to be redundant?

Which of the following is the typical start codon in most mRNA molecules?

Which type of RNA molecule contains the genetic code of a gene that is read by ribosomes during translation?

Synthesis of a protein from an mRNA molecule is called ________.

What enzyme separates strands of DNA during DNA replication to make DNA single-stranded so it can be copied?

Which organelles form the site of ATP production by aerobic cellular respiration?

Which of the following is a characteristic of smooth endoplasmic reticulum (SER) but not rough endoplasmic reticulum (RER)?

What is the role of the Golgi apparatus in cellular function?

Which part of a gene codes for the protein?

Which of the following enzymes is a component of the large ribosomal subunit and catalyzes the formation of peptide bonds between an amino acid attached to a peptidyl-tRNA and an amino acid from an aminoacyl-tRNA?

Addition of a poly(A) tail to an mRNA molecule ________.

Which is NOT true of prokaryotes?

________ bind to mRNA and tRNA during translation and allow for polypeptides to be synthesized.

Briefly describe how the experiments performed by Frederick Griffith provided evidence of DNA as the genetic material.

In a nucleotide of DNA, which carbon of the deoxyribose sugar binds to the base?

The Biotechnology Century and Its Workforce

Recombinant Dna Technology and Genomics

Proteins As Products

Microbial Biotechnology

Plant Biotechnology

Animal Biotechnology

Dna Fingerprinting and Forensic Analysis

Bioremediation

Aquatic Biotechnology

Medical Biotechnology

Biotechnology Regulations

Ethics and Biotechnology

Filters