Question 1

In gene transfer procedures,why is it necessary to use processed mRNA molecules to make cDNA to transfer to another organism?

Accepted Answer

In gene transfer procedures, it is often...

Question 2

How many genes constitute the human genome?

Accepted Answer

A)   3 billion
B)   500,000
C)   About 25,000
D)   46

Question 3

All of these are types of noncoding human DNA except

Accepted Answer

A)   structural DNA.
B)   repeated sequences.
C)   transposable elements.
D)   exons.

Question 4

To seal the cut fragments of DNA together,an enzyme called __________ is used.

Accepted Answer

A)   amylase
B)   peptidase
C)   trypsin
D)   ligase

Question 5

One disease in which gene therapy was used,but not successfully yet is

Accepted Answer

A)   the common cold.
B)   cystic fibrosis.
C)   tuberculosis.
D)   anthrax.

Question 6

A cell is called __________ if it has the ability to form any body tissue or even an adult animal.

Accepted Answer

The answer of A cell is called __________ if it...

Question 7

Therapeutic cloning successfully addresses the key problem of ________________ that must be solved before embryonic stem cells can be used to repair damaged human organs.

Accepted Answer

A)   immune acceptance
B)   shortened life span
C)   intra-species transfer of specific genes
D)   producing a viable vector

Question 8

Which of the following problems exist when performing human gene therapy?

Accepted Answer

A)   The vector used to carry the gene may elicit a strong immune response,leading to rejection of the added gene.
B)   The virus vector may insert its DNA into the middle of a gene which could lead to cancer.
C)   The genes carried by the virus vector could be used to produce more viruses.
D)   All of the above.
E)   The first two are correct.

Question 9

Genetic engineering in agriculture has been employed to make crops

Accepted Answer

A)   resistant to insect pests.
B)   resistant to certain herbicides.
C)   more nutritious.
D)   All of these are correct.

Question 10

Explain the techniques used in the cloning of "Dolly."

Accepted Answer

The answer of Explain the techniques used in the cloning...

Question 11

Ian Wilmut successfully cloned Dolly the sheep from a fully differentiated sheep cell.This type of cloning is known as

Accepted Answer

A)   reproductive cloning.
B)   therapeutic cloning.
C)   stem cell cloning.
D)   gene therapy cloning.

Question 12

In therapeutic cloning,why are the embryonic cells used to treat an individual not rejected by that individual?

Accepted Answer

A)   Because the individual's immune system is suppressed with drugs.
B)   Because the cells are embryonic.
C)   They are rejected,and that is why this has not worked yet.
D)   Because the embryonic cells are cloned from the same individual they are injected into.

Question 13

Crop plants are made resistant to insect pests by

Accepted Answer

A)   injecting mRNA for a protein into the roots of the plant.
B)   inserting the Bt protein gene into the plant.
C)   coating the plant with a gel that acts as a barrier.
D)   All of these are correct.

Question 14

What is the advantage of using restriction enzymes to cleave DNA?

Accepted Answer

Restriction enzymes, also known as restr...

Question 15

Removing genes from molecules of DNA requires the use of special

Accepted Answer

A)   digestive enzymes.
B)   restriction enzymes.
C)   enzymes from peroxisomes.
D)   microscopic scalpels.

Question 16

A promising vector is being investigated for use in gene therapy.It is the

Accepted Answer

A)   adenovirus.
B)   NIH virus.
C)   rhino-associated virus.
D)   adeno-associated virus.

Question 17

The idea of cloning animals was presented by _____ in 1938.

Accepted Answer

A)   Thomson
B)   Varmus
C)   Wilmut
D)   Spemann

Question 18

Heat is used in DNA sequencing to _________ the double strands of the molecule.

Accepted Answer

The answer of Heat is used in DNA sequencing to...

Question 19

Explain what has to happen to embryonic stem cells from a donor before they are used in a patient as a therapy.

Accepted Answer

The answer of Explain what has to happen to embryonic...

Question 20

What percent of the human genome is coding DNA?

Accepted Answer

A)   1 - 1.5%
B)   5 - 7.5%
C)   9.5 - 15%
D)   34 - 55%
E)   It changes during a person's life.

Exam 13: The New Biology

Removing genes from molecules of DNA requires the use of special

Correct AnswerverifiedShow Answer

What is the advantage of using restriction enzymes to cleave DNA?

Correct AnswerAnswered by ExamLex AIRestriction enzymes, also known as restr...View AnswerShow Answer

Ian Wilmut successfully cloned Dolly the sheep from a fully differentiated sheep cell.This type of cloning is known as

Correct AnswerverifiedShow Answer

What percent of the human genome is coding DNA?

Correct AnswerverifiedShow Answer

All of these are types of noncoding human DNA except

Correct AnswerverifiedShow Answer

Explain what has to happen to embryonic stem cells from a donor before they are used in a patient as a therapy.

Correct AnswerverifiedShow Answer

The idea of cloning animals was presented by _____ in 1938.

Correct AnswerverifiedShow Answer

In gene transfer procedures,why is it necessary to use processed mRNA molecules to make cDNA to transfer to another organism?

Correct AnswerAnswered by ExamLex AIIn gene transfer procedures, it is often...View AnswerShow Answer

Therapeutic cloning successfully addresses the key problem of ________________ that must be solved before embryonic stem cells can be used to repair damaged human organs.

Correct AnswerverifiedShow Answer

Explain the techniques used in the cloning of "Dolly."

Correct AnswerverifiedShow Answer

One disease in which gene therapy was used,but not successfully yet is

Correct AnswerverifiedShow Answer

Heat is used in DNA sequencing to _________ the double strands of the molecule.

Correct AnswerverifiedShow Answer

Which of the following problems exist when performing human gene therapy?

Correct AnswerverifiedShow Answer

Genetic engineering in agriculture has been employed to make crops

Correct AnswerverifiedShow Answer

Crop plants are made resistant to insect pests by

Correct AnswerverifiedShow Answer

In therapeutic cloning,why are the embryonic cells used to treat an individual not rejected by that individual?

Correct AnswerverifiedShow Answer

A cell is called __________ if it has the ability to form any body tissue or even an adult animal.

Correct AnswerverifiedShow Answer

A promising vector is being investigated for use in gene therapy.It is the

Correct AnswerverifiedShow Answer

How many genes constitute the human genome?

Correct AnswerverifiedShow Answer

To seal the cut fragments of DNA together,an enzyme called __________ is used.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Restriction enzymes, also known as restr...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
In gene transfer procedures, it is often...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified