Question 1

In DNA replication,

Accepted Answer

A)  the double helix is not unwound. 
B)  the enzyme RNA polymerase links nucleotides together. 
C)  the sugar of one nucleotide is linked to the sugar of the next. 
D)  new DNA molecules contain one old and one new strand. 
E)  only one of the two original strands will serve as a template. 
A)  the double helix is not unwound. 
B)  the enzyme RNA polymerase links nucleotides together. 
C)  the sugar of one nucleotide is linked to the sugar of the next. 
D)  new DNA molecules contain one old and one new strand. 
E)  only one of the two original strands will serve as a template. D

Question 2

A single DNA nucleotide consists of all of the following components EXCEPT

Accepted Answer

A)  a phosphate group. 
B)  deoxyribose. 
C)  a nitrogenous base. 
D)  uracil. 
E)  none of these. 
A)  a phosphate group. 
B)  deoxyribose. 
C)  a nitrogenous base. 
D)  uracil. 
E)  none of these. D

Question 3

Which base is ONLY found in RNA?

Accepted Answer

A)  cytosine 
B)  adenine 
C)  thymine 
D)  uracil 
E)  guanine 
A)  cytosine 
B)  adenine 
C)  thymine 
D)  uracil 
E)  guanine D

Question 4

The difference between deoxyribose and ribose is that deoxyribose contains an extra oxygen atom.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is a pyrimidine?

Accepted Answer

A)  uracil 
B)  adenine 
C)  guanine 
D)  ribose 
E)  deoxyribose 
A)  uracil 
B)  adenine 
C)  guanine 
D)  ribose 
E)  deoxyribose

Question 6

People with Xeroderma Pigmentosum are extremely resistant to DNA damage caused by UV light.

Accepted Answer

A) True 
 B)False

Question 7

How can UV light exposure cause DNA mutations?

Accepted Answer

A)  The UV light disrupts normal base pairing of the DNA at the site of the damage. 
B)  The UV light disrupts the DNA repair systems in the cell. 
C)  The UV light changes the DNA polymerase so it makes more mistakes. 
D)  The UV light causes breaks in the DNA strands. 
E)  The UV light separates the two strands of the double helix. 
A)  The UV light disrupts normal base pairing of the DNA at the site of the damage. 
B)  The UV light disrupts the DNA repair systems in the cell. 
C)  The UV light changes the DNA polymerase so it makes more mistakes. 
D)  The UV light causes breaks in the DNA strands. 
E)  The UV light separates the two strands of the double helix.

Question 8

What are the subunits of DNA and RNA called?

Accepted Answer

A)  fatty acids 
B)  nucleotides 
C)  amino acids 
D)  nucleic acids 
E)  ribose 
A)  fatty acids 
B)  nucleotides 
C)  amino acids 
D)  nucleic acids 
E)  ribose

Question 9

Nucleotides are made of four components.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following components is NOT present in RNA?

Accepted Answer

A)  thymine 
B)  phosphate group 
C)  uracil 
D)  ribose 
E)  cytosine 
A)  thymine 
B)  phosphate group 
C)  uracil 
D)  ribose 
E)  cytosine

Question 11

Which one of the following nitrogenous bases is not found in DNA?

Accepted Answer

A)  uracil 
B)  adenine 
C)  guanine 
D)  cytosine 
E)  thymine 
A)  uracil 
B)  adenine 
C)  guanine 
D)  cytosine 
E)  thymine

Question 12

All of the following describe functions of DNA polymerase EXCEPT

Accepted Answer

A)  produces DNA molecules that contain one old strand and one new strand. 
B)  adds complementary base pairs to the growing strand. 
C)  links together nucleotides. 
D)  detects errors in the replication process and corrects the mistake. 
E)  produces RNA molecules. 
A)  produces DNA molecules that contain one old strand and one new strand. 
B)  adds complementary base pairs to the growing strand. 
C)  links together nucleotides. 
D)  detects errors in the replication process and corrects the mistake. 
E)  produces RNA molecules.

Question 13

In a DNA molecule,hydrogen bonds form between which of the following pairs of bases?

Accepted Answer

A)  thymine and adenine 
B)  guanine and thymine 
C)  cytosine and thymine 
D)  adenine and uracil 
E)  adenine and cytosine 
A)  thymine and adenine 
B)  guanine and thymine 
C)  cytosine and thymine 
D)  adenine and uracil 
E)  adenine and cytosine

Question 14

In DNA,base pairing involves a

Accepted Answer

A)  histone core binding with DNA. 
B)  ribosome pairing with a purine. 
C)  purine binding to a phosphate group. 
D)  purine binding to another purine. 
E)  purine binding to a pyrimidine. 
A)  histone core binding with DNA. 
B)  ribosome pairing with a purine. 
C)  purine binding to a phosphate group. 
D)  purine binding to another purine. 
E)  purine binding to a pyrimidine.

Question 15

One of Rosalind Franklin's X-ray diffraction photos was crucial for Watson and Crick to develop their model of DNA.

Accepted Answer

A) True 
 B)False

Question 16

The DNA model proposed by Watson and Crick offered a molecular explanation for mutation.

Accepted Answer

A) True 
 B)False

Question 17

DNA is found in both the nucleus and cytoplasm.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following statements about DNA is FALSE?

Accepted Answer

A)  Complementary nitrogenous bases can base pair. 
B)  In DNA, the nitrogenous base adenine pairs with uracil. 
C)  DNA is typically double stranded. 
D)  Genetic information is stored in the sequence of bases. 
E)  The complementary sequence of bases in the two strands of DNA explains how DNA copies itself before each cell division. 
A)  Complementary nitrogenous bases can base pair. 
B)  In DNA, the nitrogenous base adenine pairs with uracil. 
C)  DNA is typically double stranded. 
D)  Genetic information is stored in the sequence of bases. 
E)  The complementary sequence of bases in the two strands of DNA explains how DNA copies itself before each cell division.

Question 19

The ____ forms when DNA is wound around a histone core.

Accepted Answer

A)  nucleosome 
B)  centromere 
C)  chromatid 
D)  polymerase 
E)  double helix 
A)  nucleosome 
B)  centromere 
C)  chromatid 
D)  polymerase 
E)  double helix

Question 20

Which of the following is a purine?

Accepted Answer

A)  cysteine 
B)  uracil 
C)  thymine 
D)  cytosine 
E)  adenine 
A)  cysteine 
B)  uracil 
C)  thymine 
D)  cytosine 
E)  adenine

In DNA replication,

A single DNA nucleotide consists of all of the following components EXCEPT

Which base is ONLY found in RNA?

The difference between deoxyribose and ribose is that deoxyribose contains an extra oxygen atom.

Which of the following is a pyrimidine?

People with Xeroderma Pigmentosum are extremely resistant to DNA damage caused by UV light.

How can UV light exposure cause DNA mutations?

What are the subunits of DNA and RNA called?

Nucleotides are made of four components.

Which of the following components is NOT present in RNA?

Which one of the following nitrogenous bases is not found in DNA?

All of the following describe functions of DNA polymerase EXCEPT

In a DNA molecule,hydrogen bonds form between which of the following pairs of bases?

In DNA,base pairing involves a

One of Rosalind Franklin's X-ray diffraction photos was crucial for Watson and Crick to develop their model of DNA.

The DNA model proposed by Watson and Crick offered a molecular explanation for mutation.

DNA is found in both the nucleus and cytoplasm.

Which of the following statements about DNA is FALSE?

The ____ forms when DNA is wound around a histone core.

Which of the following is a purine?

Sex and Development

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Gene Expression and Gene Regulation

Changes in DNA: Mutations and Epigenetics

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 3-Genes, Populations, and the Environment

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Exam 18: Biology Basics 2-DNA and RNA

In DNA replication,

A single DNA nucleotide consists of all of the following components EXCEPT

Which base is ONLY found in RNA?

The difference between deoxyribose and ribose is that deoxyribose contains an extra oxygen atom.

Which of the following is a pyrimidine?

People with Xeroderma Pigmentosum are extremely resistant to DNA damage caused by UV light.

How can UV light exposure cause DNA mutations?

What are the subunits of DNA and RNA called?

Nucleotides are made of four components.

Which of the following components is NOT present in RNA?

Which one of the following nitrogenous bases is not found in DNA?

All of the following describe functions of DNA polymerase EXCEPT

In a DNA molecule,hydrogen bonds form between which of the following pairs of bases?

In DNA,base pairing involves a

One of Rosalind Franklin's X-ray diffraction photos was crucial for Watson and Crick to develop their model of DNA.

The DNA model proposed by Watson and Crick offered a molecular explanation for mutation.

DNA is found in both the nucleus and cytoplasm.

Which of the following statements about DNA is FALSE?

The ____ forms when DNA is wound around a histone core.

Which of the following is a purine?

Sex and Development

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Gene Expression and Gene Regulation

Changes in DNA: Mutations and Epigenetics

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 3-Genes, Populations, and the Environment

Filters