Question 1

Multipotency and unipotency develop when specific genes are deleted from adult stem cells.

Accepted Answer

A) True 
 B)False

Question 2

In reproductive cloning,if the egg cell was not enucleated before it was fused to the somatic cell,the embryo that developed would have ________ set(s)of chromosomes.

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 3

In RNA ________,the expression of a specific gene is blocked by small pieces of RNA.

Accepted Answer

The answer of In RNA ________,the expression of a specific...

Question 4

Short tandem repeats are used to create DNA fingerprints because they are highly ________ regions of DNA.

Accepted Answer

The answer of Short tandem repeats are used to create...

Question 5

Stem cells display two unique characteristics: the ability to ________ and ________.

Accepted Answer

A)  produce vaccines;produce insulin 
B)  cut DNA into smaller pieces;accept recombinant plasmids 
C)  express genes;synthesize proteins 
D)  differentiate into a variety of cell types;divide repeatedly 
A)  produce vaccines;produce insulin 
B)  cut DNA into smaller pieces;accept recombinant plasmids 
C)  express genes;synthesize proteins 
D)  differentiate into a variety of cell types;divide repeatedly

Question 6

To clone a recombinant plasmid,you would

Accepted Answer

A)  insert the plasmid into a virus and inject the virus into a human cell. 
B)  allow bacteria to take up the plasmid and copy it many times. 
C)  mix the plasmid with restriction enzymes and nucleotides. 
D)  use ligase to fuse the ends of the plasmids together. 
A)  insert the plasmid into a virus and inject the virus into a human cell. 
B)  allow bacteria to take up the plasmid and copy it many times. 
C)  mix the plasmid with restriction enzymes and nucleotides. 
D)  use ligase to fuse the ends of the plasmids together.

Question 7

A sample of the same DNA is placed into each of two test tubes.Each tube is treated with a restriction enzyme,and the resulting fragments are separated by gel electrophoresis,producing the gel shown in the following figure.Which of the following explains why the pattern of DNA fragments differs in these two samples?

Accepted Answer

A)  Different restriction enzymes must have been used in the different tubes. 
B)  One tube was heated,but the other tube was not. 
C)  Ligase was added to one of the tubes but not the other. 
D)  The restriction enzyme added to the tubes cut DNA at more than one sequence. 
A)  Different restriction enzymes must have been used in the different tubes. 
B)  One tube was heated,but the other tube was not. 
C)  Ligase was added to one of the tubes but not the other. 
D)  The restriction enzyme added to the tubes cut DNA at more than one sequence.

Question 8

To screen the genome of a bacterium for a particular gene,you would use ________that attach to complementary DNA sequences.

Accepted Answer

A)  gels 
B)  ligases 
C)  DNA probes 
D)  restriction enzymes 
A)  gels 
B)  ligases 
C)  DNA probes 
D)  restriction enzymes

Question 9

To make recombinant DNA,

Accepted Answer

A)  two nonhomologous chromosomes are induced to undergo crossing-over during meiosis. 
B)  the entire genome of one organism is fused to a plasmid. 
C)  pieces of DNA from different organisms are cut with restriction enzymes and then joined together. 
D)  DNA polymerase is used to make multiple copies of the DNA sequences of two organisms at the same time. 
A)  two nonhomologous chromosomes are induced to undergo crossing-over during meiosis. 
B)  the entire genome of one organism is fused to a plasmid. 
C)  pieces of DNA from different organisms are cut with restriction enzymes and then joined together. 
D)  DNA polymerase is used to make multiple copies of the DNA sequences of two organisms at the same time.

Question 10

The nuclear DNA of the embryo that results from the process shown in the following diagram

Accepted Answer

A)  is identical to the nuclear DNA of the Scottish Blackface sheep. 
B)  is identical to the nuclear DNA of the Finn Dorset sheep. 
C)  is a unique mix of the nuclear DNA from both of the pictured sheep. 
D)  contains one full set of chromosomes from each of the pictured sheep. 
A)  is identical to the nuclear DNA of the Scottish Blackface sheep. 
B)  is identical to the nuclear DNA of the Finn Dorset sheep. 
C)  is a unique mix of the nuclear DNA from both of the pictured sheep. 
D)  contains one full set of chromosomes from each of the pictured sheep.

Question 11

Gene therapy is now effective in treating complex inherited disorders that involve multiple genes.

Accepted Answer

A) True 
 B)False

Question 12

It is better to reproductively clone animals that have useful characteristics instead of breeding them in the traditional way because

Accepted Answer

A)  the embryo develops more quickly when it is reproductively cloned. 
B)  the variation caused by sexual reproduction may affect the useful characteristic in traditional breeding. 
C)  the reproductively cloned embryo requires less DNA because it is haploid. 
D)  a traditionally bred animal requires more food. 
A)  the embryo develops more quickly when it is reproductively cloned. 
B)  the variation caused by sexual reproduction may affect the useful characteristic in traditional breeding. 
C)  the reproductively cloned embryo requires less DNA because it is haploid. 
D)  a traditionally bred animal requires more food.

Question 13

Researchers commonly use DNA technology to create recombinant DNA that has a "glowing" protein product.Which of the following is a benefit of this technology?

Accepted Answer

A)  This technology provides proof to nonscientists that genetic engineering is safe. 
B)  Organisms that express this gene can obtain energy through photosynthesis rather than consumption. 
C)  The genes for glowing proteins are easier to clone than other genes. 
D)  Glowing proteins allow scientists to see where a particular gene is expressed in living cells. 
A)  This technology provides proof to nonscientists that genetic engineering is safe. 
B)  Organisms that express this gene can obtain energy through photosynthesis rather than consumption. 
C)  The genes for glowing proteins are easier to clone than other genes. 
D)  Glowing proteins allow scientists to see where a particular gene is expressed in living cells.

Question 14

Examine the following image of a gel produced by the electrophoresis of DNA.The smallest fragment on the gel is the one indicated by the star.

Accepted Answer

A) True 
 B)False

Question 15

Pigs have been reproductively cloned whose organs will not stimulate the ________.

Accepted Answer

The answer of Pigs have been reproductively cloned whose organs...

Question 16

Which of the following conditions is the least likely to be treated with gene therapy in the future?

Accepted Answer

A)  hemophilia,in which a genetic mutation prevents the production of a clotting protein 
B)  a digestive system disorder in which a protein is not expressed that is necessary for the absorption of a nutrient 
C)  a neurodegenerative disease in which males inherit a mutated gene from their mothers 
D)  Turner syndrome,in which only one copy of the X chromosome is present instead of the usual two X chromosomes 
A)  hemophilia,in which a genetic mutation prevents the production of a clotting protein 
B)  a digestive system disorder in which a protein is not expressed that is necessary for the absorption of a nutrient 
C)  a neurodegenerative disease in which males inherit a mutated gene from their mothers 
D)  Turner syndrome,in which only one copy of the X chromosome is present instead of the usual two X chromosomes

Question 17

In the following diagram,the electrical pulse fuses the enucleated egg from one sheep and the somatic mammary cell from another sheep.This fused cell is most similar to a ________ formed during normal sexual reproduction.

Accepted Answer

A)  somatic cell 
B)  meiotic germ cell 
C)  gamete 
D)  zygote 
A)  somatic cell 
B)  meiotic germ cell 
C)  gamete 
D)  zygote

Question 18

RNA interference can only be used to treat genetic diseases.

Accepted Answer

A) True 
 B)False

Question 19

During ________ cloning,the nucleus of an egg cell is replaced with the nucleus of a somatic cell from the individual being cloned.

Accepted Answer

The answer of During ________ cloning,the nucleus of an egg...

Question 20

This graph shows that genetically modified salmon ________ than unmodified salmon.

Accepted Answer

A)  breed more quickly 
B)  are,at maturity,larger 
C)  reach a body weight of 4,000 grams faster 
D)  do more harm to native insect populations 
A)  breed more quickly 
B)  are,at maturity,larger 
C)  reach a body weight of 4,000 grams faster 
D)  do more harm to native insect populations

Exam 13: DNA Technology

Multipotency and unipotency develop when specific genes are deleted from adult stem cells.

In reproductive cloning,if the egg cell was not enucleated before it was fused to the somatic cell,the embryo that developed would have ________ set(s)of chromosomes.

In RNA ________,the expression of a specific gene is blocked by small pieces of RNA.

Short tandem repeats are used to create DNA fingerprints because they are highly ________ regions of DNA.

Stem cells display two unique characteristics: the ability to ________ and ________.

To clone a recombinant plasmid,you would

To screen the genome of a bacterium for a particular gene,you would use ________that attach to complementary DNA sequences.

To make recombinant DNA,

The nuclear DNA of the embryo that results from the process shown in the following diagram

Gene therapy is now effective in treating complex inherited disorders that involve multiple genes.

It is better to reproductively clone animals that have useful characteristics instead of breeding them in the traditional way because

Researchers commonly use DNA technology to create recombinant DNA that has a "glowing" protein product.Which of the following is a benefit of this technology?

Examine the following image of a gel produced by the electrophoresis of DNA.The smallest fragment on the gel is the one indicated by the star.

Pigs have been reproductively cloned whose organs will not stimulate the ________.

Which of the following conditions is the least likely to be treated with gene therapy in the future?

In the following diagram,the electrical pulse fuses the enucleated egg from one sheep and the somatic mammary cell from another sheep.This fused cell is most similar to a ________ formed during normal sexual reproduction.

RNA interference can only be used to treat genetic diseases.

During ________ cloning,the nucleus of an egg cell is replaced with the nucleus of a somatic cell from the individual being cloned.

This graph shows that genetically modified salmon ________ than unmodified salmon.

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons,Muscles,and Movement

The Immune System

Reproduction and Development

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

Filters

Stem cells display two unique characteristics: the ability to and .