Question 1

Each DNA strand has a backbone that consists of alternating _____.

Accepted Answer

A)  amino acids 
B)  nitrogen-containing bases 
C)  hydrogen bonds 
D)  sugar and phosphate molecules 
E)  types of sugars 
A)  amino acids 
B)  nitrogen-containing bases 
C)  hydrogen bonds 
D)  sugar and phosphate molecules 
E)  types of sugars

Question 2

What is the basic problem with cloning adult animals?

Accepted Answer

A)  obtaining enough DNA 
B)  finding proper surrogates to carry the cloned embryos 
C)  reprogramming the DNA 
D)  obtaining DNA without mutations 
E)  autoimmune rejection of the embryo by the surrogate 
A)  obtaining enough DNA 
B)  finding proper surrogates to carry the cloned embryos 
C)  reprogramming the DNA 
D)  obtaining DNA without mutations 
E)  autoimmune rejection of the embryo by the surrogate

Question 3

Match between columns
                        Premises: p rocess by which DNA establishes base pairing between two strands of DNA
p rocess by which a cell duplicates its DNA before it divides
process by which the DNA of an adult donor's body cell is transferred into an unfertilized egg
technology that produces genetically identical animals
process by which a cell becomes specialized during development

Accepted Answer

The Answer of r eproductive cloning and reproductive cloning and is...

Question 4

The two types of bonding found in a DNA molecule are _____.

Accepted Answer

A)  ionic and covalent 
B)  covalent and peptide 
C)  ionic and hydrogen 
D)  peptide and hydrogen 
E)  covalent and hydrogen 
A)  ionic and covalent 
B)  covalent and peptide 
C)  ionic and hydrogen 
D)  peptide and hydrogen 
E)  covalent and hydrogen

Question 5

Which pair represents the correct complementary bonding of nitrogen-containing bases in a DNA molecule?

Accepted Answer

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

Question 6

In the final stage of SCNT, a(n) _____ is used to cause the foreign cell to fuse with, and empty its contents into, the cytoplasm of the egg.

Accepted Answer

A)  fine point needle 
B)  virus 
C)  micropipette 
D)  electric current 
E)  calcium phosphate 
A)  fine point needle 
B)  virus 
C)  micropipette 
D)  electric current 
E)  calcium phosphate

Question 7

Match between columns
                        Premises: DNA primer
DNA polymerase
DNA ligase
enzymes that break hydrogen bonds

Accepted Answer

The Answer of 2 and 4 and 3 and 1 is...

Question 8

Which base pairs with adenine in a DNA molecule?

Accepted Answer

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

Question 9

The original published articles describing the structure of DNA were authored by _____ and _____.

Accepted Answer

A)  Crick; Franklin 
B)  Watson and Crick; Franklin 
C)  Wilkins; Franklin 
D)  Wilkins; Watson and Crick 
E)  Watson; Crick 
A)  Crick; Franklin 
B)  Watson and Crick; Franklin 
C)  Wilkins; Franklin 
D)  Wilkins; Watson and Crick 
E)  Watson; Crick

Question 10

How many times does DNA wrap around a histone?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
E)  10 
A)  1 
B)  2 
C)  4 
D)  6 
E)  10

Question 11

Body cells of human females contain _____.

Accepted Answer

A)  one X chromosome 
B)  two X chromosomes 
C)  one Y chromosomes 
D)  two Y chromosomes 
E)  one X and one Y chromosome 
A)  one X chromosome 
B)  two X chromosomes 
C)  one Y chromosomes 
D)  two Y chromosomes 
E)  one X and one Y chromosome

Question 12

A diploid organism contains _____.

Accepted Answer

A)  several copies of the same chromosomes 
B)  only autosomes 
C)  one copy of each chromosome 
D)  chromosomes of equal size 
E)  two of each type of chromosome 
A)  several copies of the same chromosomes 
B)  only autosomes 
C)  one copy of each chromosome 
D)  chromosomes of equal size 
E)  two of each type of chromosome

Question 13

If the DNA from a single cell were stretched end to end, how long would it be?

Accepted Answer

A)  2 nanometers 
B)  2 micrometers 
C)  2 millimeters 
D)  2 centimeters 
E)  2 meters 
A)  2 nanometers 
B)  2 micrometers 
C)  2 millimeters 
D)  2 centimeters 
E)  2 meters

Question 14

One of Chargaff's rules is _____.

Accepted Answer

A)  different organisms have different proportions of adenine and guanine 
B)  the DNA molecule is a double helix 
C)  the two strands in a DNA molecule run in opposite directions 
D)  the backbone of a DNA molecule is on the outside 
E)  the backbone of the DNA is comprised of alternating sugars and phosphates 
A)  different organisms have different proportions of adenine and guanine 
B)  the DNA molecule is a double helix 
C)  the two strands in a DNA molecule run in opposite directions 
D)  the backbone of a DNA molecule is on the outside 
E)  the backbone of the DNA is comprised of alternating sugars and phosphates

Question 15

Which molecule provides the energy for the assembly of new nucleotides into a DNA strand during DNA replication?

Accepted Answer

A)  ATP 
B)  the nucleotide itself 
C)  NADH 
D)  primers 
E)  DNA ligase 
A)  ATP 
B)  the nucleotide itself 
C)  NADH 
D)  primers 
E)  DNA ligase

Question 16

Rosalind Franklin did not share in the Nobel Prize for the discovery of the structure of DNA because _____.

Accepted Answer

A)  she was a woman 
B)  her contributions were minimal 
C)  she was not liked by James Watson 
D)  her ideas were stolen by Maurice Wilkins 
E)  she died of cancer before the award was given 
A)  she was a woman 
B)  her contributions were minimal 
C)  she was not liked by James Watson 
D)  her ideas were stolen by Maurice Wilkins 
E)  she died of cancer before the award was given

Question 17

After DNA replication, each chromosome contains two sister _____.

Accepted Answer

A)  chromatids 
B)  chromatins 
C)  chromosomes 
D)  centromeres 
E)  centrioles 
A)  chromatids 
B)  chromatins 
C)  chromosomes 
D)  centromeres 
E)  centrioles

Question 18

Which enzyme links nucleotides into a new stand of DNA?

Accepted Answer

A)  DNA ligase 
B)  DNA mutase 
C)  DNA polymerase 
D)  DNA primer 
E)  DNA replicase 
A)  DNA ligase 
B)  DNA mutase 
C)  DNA polymerase 
D)  DNA primer 
E)  DNA replicase

Question 19

Which scientist(s) discovered the basis for the base-pair rule, which states that the amounts of thymine and adenine are always equal in all DNA molecules, as are the amounts of cytosine and guanine?

Accepted Answer

A)  Watson and Crick 
B)  Beadles 
C)  Chargaff 
D)  Franklin 
E)  Pauling 
A)  Watson and Crick 
B)  Beadles 
C)  Chargaff 
D)  Franklin 
E)  Pauling

Question 20

Which base(s) pair(s) with cytosine?

Accepted Answer

A)  adenosine 
B)  cytosine 
C)  thymine 
D)  guanine 
E)  cytosine and thymine 
A)  adenosine 
B)  cytosine 
C)  thymine 
D)  guanine 
E)  cytosine and thymine

Exam 7: Dna Structure and Function

Each DNA strand has a backbone that consists of alternating _____.

What is the basic problem with cloning adult animals?

The two types of bonding found in a DNA molecule are _____.

Which pair represents the correct complementary bonding of nitrogen-containing bases in a DNA molecule?

In the final stage of SCNT, a(n) _____ is used to cause the foreign cell to fuse with, and empty its contents into, the cytoplasm of the egg.

Which base pairs with adenine in a DNA molecule?

The original published articles describing the structure of DNA were authored by _____ and _____.

How many times does DNA wrap around a histone?

Body cells of human females contain _____.

A diploid organism contains _____.

If the DNA from a single cell were stretched end to end, how long would it be?

One of Chargaff's rules is _____.

Which molecule provides the energy for the assembly of new nucleotides into a DNA strand during DNA replication?

Rosalind Franklin did not share in the Nobel Prize for the discovery of the structure of DNA because _____.

After DNA replication, each chromosome contains two sister _____.

Which enzyme links nucleotides into a new stand of DNA?

Which scientist(s) discovered the basis for the base-pair rule, which states that the amounts of thymine and adenine are always equal in all DNA molecules, as are the amounts of cytosine and guanine?

Which base(s) pair(s) with cytosine?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

The original published articles describing the structure of DNA were authored by _ and _.