Question 1

Transformation builds DNA from an RNA template.

Accepted Answer

Transformation is a process by which foreign DNA is introduced into a cell. It does not involve the creation of DNA from an RNA template. This process is called reverse transcription, which occurs in some viruses such as retroviruses.

Question 2

Protein is the hereditary genetic material in human cells.

Accepted Answer

The hereditary genetic material in human cells is DNA, not protein. Protein is one of the building blocks that DNA uses to encode genetic information.

Question 3

During DNA replication the enzyme ___________ _____________ builds a new strand of DNA while using the old strand of DNA as a template

Accepted Answer

The answer of During DNA replication the enzyme ___________ _____________...

Question 4

During replication each "old" DNA strand serves as a template for a new strand.

Accepted Answer

During replication, the double-stranded DNA molecule is unwound and each of the two old strands serves as a template for the synthesis of a new complementary strand, resulting in two identical daughter molecules.

Question 5

The "rungs" in the DNA "ladder" consist of _______ pairs.

Accepted Answer

The answer of The "rungs" in the DNA "ladder" consist...

Question 6

During DNA replication, the template strands of the original DNA molecule are complementary both to each other and to one of the new strands.

Accepted Answer

During DNA replication, the two template strands of the original DNA molecule separate and serve as templates for the synthesis of two new complementary strands. The new strands are complementary to each other and to their respective template strands. Overall, the DNA molecule ends up with two identical copies.

Question 7

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 reverse the damage caused by exposure to ultraviolet (UV) light.

Accepted Answer

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

Question 8

The process of DNA replication is error-free.

Accepted Answer

While DNA replication is highly accurate, errors can still occur due to factors such as DNA polymerase proofreading errors, environmental factors, and spontaneous mutations.

Question 9

The sequence of bases along a single strand of DNA is complementary.

Accepted Answer

The answer of The sequence of bases along a single...

Question 10

Griffith's experiments proved that DNA was the genetic material.

Accepted Answer

Griffith's experiments demonstrated the phenomenon of transformation, but they did not identify DNA as the genetic material. It was later work by Avery, MacLeod, and McCarty that provided evidence that DNA is the genetic material.

Question 11

The experiments of Hershey and Chase showed that viruses contain DNA.

Accepted Answer

The answer of The experiments of Hershey and Chase showed...

Question 12

To repair DNA, a protein cuts out the damaged section.

Accepted Answer

This protein is called an endonuclease and it recognizes and cuts out the damaged section of DNA.

Question 13

DNA ____________ results in the duplication of a DNA molecule.

Accepted Answer

The answer of DNA ____________ results in the duplication of...

Question 14

A change in the DNA base sequence due to an uncorrected mismatch error is called a _______.

Accepted Answer

The answer of A change in the DNA base sequence...

Question 15

The backbone of a DNA molecule is made up of sugars and _______.

Accepted Answer

The answer of The backbone of a DNA molecule is...

Question 16

Labeling the _________ of a bacterial virus with radioactive phosphate allowed Hershey and Chase to determine whether DNA or protein was the molecule of inheritance.

Accepted Answer

The answer of Labeling the _________ of a bacterial virus...

Question 17

Exposure to ________________ light can cause sunburn and massive DNA damage to skin cells.

Accepted Answer

The answer of Exposure to ________________ light can cause sunburn...

Question 18

When compared, the nucleotide sequences of different individuals are_______________.

Accepted Answer

The answer of When compared, the nucleotide sequences of different...

Question 19

DNA consists of two twisted strands of _______.

Accepted Answer

The answer of DNA consists of two twisted strands of...

Question 20

A _______ error occurs when the wrong base is inserted during DNA replication.

Accepted Answer

The answer of A _______ error occurs when the wrong...

Quiz 12: DNA