Question 1

MATCHING
Put the following in order from smallest to largest.
-This is the smallest in size.

Accepted Answer

A) gene 
B) base 
C) nucleotide 
D) genome 
E) base pair 
A) gene 
B) base 
C) nucleotide 
D) genome 
E) base pair

Question 2

The two strands of a DNA molecule are held together by ________ bonds between their base pairs.

Accepted Answer

A) hydrogen 
B) amino acid 
C) phosphate 
D) protein 
A) hydrogen 
B) amino acid 
C) phosphate 
D) protein

Question 3

A chemical is found that binds to a replicating strand of DNA but does not allow the next nucleotide to bind to the growing chain.Explain how this chemical would affect cell division.

Accepted Answer

This chemical would

Question 4

When looking at a single-stranded piece of DNA,

Accepted Answer

A) G will always be next to C. 
B) G will always be next to G. 
C) G will sometimes be next to T. 
D) G will never be next to A. 
A) G will always be next to C. 
B) G will always be next to G. 
C) G will sometimes be next to T. 
D) G will never be next to A.

Question 5

The order of the base pairs in a DNA molecule

Accepted Answer

A) differs from species to species. 
B) is identical in all organisms. 
C) is identical in organisms of the same species. 
D) differs from cell to cell in a given organism. 
A) differs from species to species. 
B) is identical in all organisms. 
C) is identical in organisms of the same species. 
D) differs from cell to cell in a given organism.

Question 6

Once replication in a DNA molecule is complete,each new DNA molecule contains

Accepted Answer

A) one old strand and one new strand. 
B) the paired old strands and the paired new strands. 
C) new DNA polymerase. 
D) a new sequence of nucleotides. 
A) one old strand and one new strand. 
B) the paired old strands and the paired new strands. 
C) new DNA polymerase. 
D) a new sequence of nucleotides.

Question 7

Animal genes are not turned on and off as one unit because they are not ________.

Accepted Answer

The answer of Animal genes are not turned on and...

Question 8

Is a species that lacks DNA repair mechanisms likely to have more or fewer variations between individuals than a species that possesses repair mechanisms?

Accepted Answer

A) fewer,because there are fewer ways to change the DNA 
B) fewer,because the repair mechanisms introduce more variation into the DNA sequence 
C) more,because more spontaneous mutations will go uncorrected 
D) more,because without a repair mechanism,the cell's DNA replication genes are inactivated 
A) fewer,because there are fewer ways to change the DNA 
B) fewer,because the repair mechanisms introduce more variation into the DNA sequence 
C) more,because more spontaneous mutations will go uncorrected 
D) more,because without a repair mechanism,the cell's DNA replication genes are inactivated

Question 9

Which of the following is not a base found in DNA?

Accepted Answer

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

Question 10

When bases of DNA bind to the complementary strand

Accepted Answer

A) A always pairs with T. 
B) A sometimes pairs with T. 
C) A always pairs with C. 
D) A sometimes pairs with C. 
A) A always pairs with T. 
B) A sometimes pairs with T. 
C) A always pairs with C. 
D) A sometimes pairs with C.

Question 11

A segment of DNA in a test tube replicates and produces many copies of itself.What was probably in the test tube that enhanced this process?

Accepted Answer

A) repair enzymes 
B) polymerase 
C) plasmids 
D) a mutagen 
A) repair enzymes 
B) polymerase 
C) plasmids 
D) a mutagen

Question 12

DNA fingerprinting is based on regions of DNA that are variable between individuals.Many of these differences between individuals produce no change in phenotype.This type of mutation is a(n)

Accepted Answer

A) deletion. 
B) insertion. 
C) silent mutation. 
D) substitution mutation. 
A) deletion. 
B) insertion. 
C) silent mutation. 
D) substitution mutation.

Question 13

The difference between the different alleles of a gene is

Accepted Answer

A) their DNA base sequences. 
B) the way they are copied when the cell divides. 
C) the type of lipid they are composed of. 
D) they are not heritable. 
A) their DNA base sequences. 
B) the way they are copied when the cell divides. 
C) the type of lipid they are composed of. 
D) they are not heritable.

Question 14

When examining the two complementary strands of nucleotides in one DNA molecule,you would expect to find that

Accepted Answer

A) the sum of Gs and Cs in one strand would be equal to the sum of the Gs and Cs in the other strand. 
B) the sum of Ts and As in one strand would be equal to the sum of the Cs and Gs in the other strand. 
C) the sum of Ts and As in one strand would be greater than the sum of the Ts and As in the other strand. 
D) the sum of As and Cs in one strand would be less than the sum of the Ts and Gs in the other strand. 
A) the sum of Gs and Cs in one strand would be equal to the sum of the Gs and Cs in the other strand. 
B) the sum of Ts and As in one strand would be equal to the sum of the Cs and Gs in the other strand. 
C) the sum of Ts and As in one strand would be greater than the sum of the Ts and As in the other strand. 
D) the sum of As and Cs in one strand would be less than the sum of the Ts and Gs in the other strand.

Question 15

Mismatch errors are

Accepted Answer

A) almost always corrected by mutagens. 
B) also called mutations. 
C) almost always corrected by specialized proteins. 
D) usually caused by mutated proteins. 
A) almost always corrected by mutagens. 
B) also called mutations. 
C) almost always corrected by specialized proteins. 
D) usually caused by mutated proteins.

Question 16

Damaged DNA may be repaired by a special class of

Accepted Answer

A) nucleotides. 
B) proteins. 
C) deoxyribose molecules. 
D) phosphate bonds. 
A) nucleotides. 
B) proteins. 
C) deoxyribose molecules. 
D) phosphate bonds.

Question 17

People with xeroderma pigmentosum frequently exhibit skin cancer.The disease is a result of a mutation in a gene that produces a ________ protein.Without this protein,cells cannot fix changes in their DNA sequence caused by exposure to ultraviolet (UV)light.

Accepted Answer

The answer of People with xeroderma pigmentosum frequently exhibit skin...

Question 18

The hereditary genetic material present in all living cells is

Accepted Answer

A) carbohydrate. 
B) protein. 
C) DNA. 
D) RNA. 
A) carbohydrate. 
B) protein. 
C) DNA. 
D) RNA.

Question 19

In a strand of double-stranded DNA,C will always be bound with

Accepted Answer

A) A. 
B) T. 
C) C. 
D) G. 
A) A. 
B) T. 
C) C. 
D) G.

Question 20

A detective finds a miniscule spot of blood on a murder suspect's shirt.What method would she expect the police lab to use to get enough DNA from the blood droplet to perform DNA fingerprinting?

Accepted Answer

A) inserting the blood's DNA into viral DNA 
B) polymerase chain reaction (PCR) 
C) inserting the sample's DNA into a plasmid 
D) DNA sequencing 
A) inserting the blood's DNA into viral DNA 
B) polymerase chain reaction (PCR) 
C) inserting the sample's DNA into a plasmid 
D) DNA sequencing

MATCHING Put the following in order from smallest to largest. -This is the smallest in size.

The two strands of a DNA molecule are held together by ________ bonds between their base pairs.

A chemical is found that binds to a replicating strand of DNA but does not allow the next nucleotide to bind to the growing chain.Explain how this chemical would affect cell division.

When looking at a single-stranded piece of DNA,

The order of the base pairs in a DNA molecule

Once replication in a DNA molecule is complete,each new DNA molecule contains

Animal genes are not turned on and off as one unit because they are not ________.

Is a species that lacks DNA repair mechanisms likely to have more or fewer variations between individuals than a species that possesses repair mechanisms?

Which of the following is not a base found in DNA?

When bases of DNA bind to the complementary strand

A segment of DNA in a test tube replicates and produces many copies of itself.What was probably in the test tube that enhanced this process?

DNA fingerprinting is based on regions of DNA that are variable between individuals.Many of these differences between individuals produce no change in phenotype.This type of mutation is a(n)

The difference between the different alleles of a gene is

When examining the two complementary strands of nucleotides in one DNA molecule,you would expect to find that

Mismatch errors are

Damaged DNA may be repaired by a special class of

People with xeroderma pigmentosum frequently exhibit skin cancer.The disease is a result of a mutation in a gene that produces a ________ protein.Without this protein,cells cannot fix changes in their DNA sequence caused by exposure to ultraviolet (UV)light.

The hereditary genetic material present in all living cells is

In a strand of double-stranded DNA,C will always be bound with

A detective finds a miniscule spot of blood on a murder suspect's shirt.What method would she expect the police lab to use to get enough DNA from the blood droplet to perform DNA fingerprinting?

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Applying the Science

Filters

Exam 8: What Genes Are

MATCHING Put the following in order from smallest to largest. -This is the smallest in size.

The two strands of a DNA molecule are held together by ________ bonds between their base pairs.

A chemical is found that binds to a replicating strand of DNA but does not allow the next nucleotide to bind to the growing chain.Explain how this chemical would affect cell division.

When looking at a single-stranded piece of DNA,

The order of the base pairs in a DNA molecule

Once replication in a DNA molecule is complete,each new DNA molecule contains

Animal genes are not turned on and off as one unit because they are not ________.

Is a species that lacks DNA repair mechanisms likely to have more or fewer variations between individuals than a species that possesses repair mechanisms?

Which of the following is not a base found in DNA?

When bases of DNA bind to the complementary strand

A segment of DNA in a test tube replicates and produces many copies of itself.What was probably in the test tube that enhanced this process?

DNA fingerprinting is based on regions of DNA that are variable between individuals.Many of these differences between individuals produce no change in phenotype.This type of mutation is a(n)

The difference between the different alleles of a gene is

When examining the two complementary strands of nucleotides in one DNA molecule,you would expect to find that

Mismatch errors are

Damaged DNA may be repaired by a special class of

People with xeroderma pigmentosum frequently exhibit skin cancer.The disease is a result of a mutation in a gene that produces a ________ protein.Without this protein,cells cannot fix changes in their DNA sequence caused by exposure to ultraviolet (UV)light.

The hereditary genetic material present in all living cells is

In a strand of double-stranded DNA,C will always be bound with

A detective finds a miniscule spot of blood on a murder suspect's shirt.What method would she expect the police lab to use to get enough DNA from the blood droplet to perform DNA fingerprinting?

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Applying the Science

Filters