Question 1

The figure below is a nucleotide:  
- If this molecule were found in a DNA chain,the chemical group labeled X would be and the chemical labeled Y would be_________ .

Accepted Answer

A) OH; H 
B) OH; OH 
C) H; OH 
D) H; H 
A) OH; H 
B) OH; OH 
C) H; OH 
D) H; H A

Question 2

Explain the technique of electrophoretic separation of DNA fragments.

Accepted Answer

A mixture of different sized DNA molecules are subjected to an electric field,and migrate through a semisolid matrix such that smaller fragments travel further in the matrix.Also see Figure 10.18.

Question 3

The figure below is a nucleotide:  
- If you were told that this molecule could be found in either DNA or RNA,depending on the identity of the chem groups labeled X)and Y),the nitrogen- containing ring structure would have to be ______.

Accepted Answer

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

Question 4

If 15% of the nitrogenous bases in a sample of DNA from a particular organism are thymine,what percentage should be cytosine?

Accepted Answer

A) 40% 
B) 35% 
C) 70% 
D) 15% 
E) 30% 
A) 40% 
B) 35% 
C) 70% 
D) 15% 
E) 30%

Question 5

You determine the sequence of an isolated gene,and wish to find its location in the genome.Propose a procedure using fluorescence to locate your gene of interest.

Accepted Answer

A single- stranded probe molecule could

Question 6

Some forms of genetic regulation can be facilitated by ______ .

Accepted Answer

A) miRNA 
B) lncRNA 
C) siRNA 
D) lncRNA and siRNA 
E) miRNA,siRNA,and lncRNA 
A) miRNA 
B) lncRNA 
C) siRNA 
D) lncRNA and siRNA 
E) miRNA,siRNA,and lncRNA

Question 7

The most specific name for an incoming monomer about to be incorporated into a DNA chain is  ______.

Accepted Answer

A) nucleotide 
B) deoxyribonucleoside 
C) deoxyribonucleoside triphosphate 
D) ribonucleoside diphosphate 
E) nucleoside monophosphate 
A) nucleotide 
B) deoxyribonucleoside 
C) deoxyribonucleoside triphosphate 
D) ribonucleoside diphosphate 
E) nucleoside monophosphate

Question 8

In an analysis of the nucleotide composition of double- stranded DNA to see which bases are equivalent in concentration,which of the following would be true?

Accepted Answer

A) G = T 
B) A + T = G + C 
C) A = G and C = T 
D) A + C = G + T 
E) A = C 
A) G = T 
B) A + T = G + C 
C) A = G and C = T 
D) A + C = G + T 
E) A = C

Question 9

What are the two major components of the tobacco mosaic virus?

Accepted Answer

A) RNA and protein 
B) carbohydrates and nucleic acids 
C) lipids and nucleic acids 
D) RNA and DNA 
E) DNA and protein 
A) RNA and protein 
B) carbohydrates and nucleic acids 
C) lipids and nucleic acids 
D) RNA and DNA 
E) DNA and protein

Question 10

The form of DNA that is observed to adopt a left- handed helix is ______ .

Accepted Answer

A) P- DNA 
B) Z- DNA 
C) C- DNA 
D) A- DNA 
E) D- DNA 
A) P- DNA 
B) Z- DNA 
C) C- DNA 
D) A- DNA 
E) D- DNA

Question 11

In the classic experiment conducted by Hershey and Chase,why was the pellet radioactive in the centrifuge tube that contained bacteria with viruses?

Accepted Answer

A) The bacteria were in the pellet,and they had incorporated radioactive proteins into their cell membranes. 
B) The radioactive viruses coats plus DNA were in the pellet. 
C) The radioactive protein coats of the viruses were in the pellet. 
D) The radioactive viruses were in the pellet,and the bacteria were in the supernatant. 
E) The bacteria were in the pellet,and many contained the radioactive viral DNA. 
A) The bacteria were in the pellet,and they had incorporated radioactive proteins into their cell membranes. 
B) The radioactive viruses coats plus DNA were in the pellet. 
C) The radioactive protein coats of the viruses were in the pellet. 
D) The radioactive viruses were in the pellet,and the bacteria were in the supernatant. 
E) The bacteria were in the pellet,and many contained the radioactive viral DNA.

Question 12

Briefly define transformation and describe the relationship between the phenomenon of transformation and the discovery that DNA is the genetic material in bacteria.

Accepted Answer

Transformation is the process whereby on

Question 13

When calculating a molecule's Svedberg coefficient,the rate of sedimentation is affected by the molecule's  ______.

Accepted Answer

A) size 
B) shape 
C) mass 
D) size and shape 
E) mass,size,and shape 
A) size 
B) shape 
C) mass 
D) size and shape 
E) mass,size,and shape

Question 14

Match the function of DNA on the left with the appropriate description on the right.   Which of the choices below is correct?

Accepted Answer

A) i = d; ii = b; iii = c; iv = a 
B) i = d; ii = c; iii = b; iv = a 
C) i = d; ii = b; iii = a; iv = c 
D) i = b; ii = d; iii = a; iv = c 
E) i = c; ii = a; iii = b; iv = d 
A) i = d; ii = b; iii = c; iv = a 
B) i = d; ii = c; iii = b; iv = a 
C) i = d; ii = b; iii = a; iv = c 
D) i = b; ii = d; iii = a; iv = c 
E) i = c; ii = a; iii = b; iv = d

Question 15

The figure below is a nucleotide:  
- If this molecule were found in an RNA chain,the chemical group labeled X would be and the chemic labeled Y would be _________  .

Accepted Answer

A) OH; H 
B) OH; OH 
C) H; H 
D) H; OH 
A) OH; H 
B) OH; OH 
C) H; H 
D) H; OH

Question 16

Compare and contrast the principal types of RNA in terms of their cellular roles,relative abundance,and variation in length.

Accepted Answer

rRNA is the most abundant,serves a struc

Question 17

Identify the nitrogenous bases and pentose sugars in DNA and RNA.

Accepted Answer

DNA has deoxyribose as the sugar in its

Question 18

Which type of rRNA can be found in both prokaryotes and eukaryotes?

Accepted Answer

A) 18S 
B) 5)8S 
C) 5S 
D) 16S 
E) 23S 
A) 18S 
B) 5)8S 
C) 5S 
D) 16S 
E) 23S

Question 19

The Central Dogma specifies that the information in __________.

Accepted Answer

A) RNA is copied into a DNA molecule during transcription,and the information in that DNA molecule is used to make a protein during translation 
B) DNA is copied into an RNA molecule during transcription,and the information in that RNA molecule is used to make a protein during translation 
C) DNA is copied directly into a protein 
D) protein is copied into an RNA molecule during translation,and the information in that RNA molecule is used to make DNA during transcription 
E) DNA is copied into an RNA molecule during translation,and the information in that RNA molecule is used to make a protein during transcription 
A) RNA is copied into a DNA molecule during transcription,and the information in that DNA molecule is used to make a protein during translation 
B) DNA is copied into an RNA molecule during transcription,and the information in that RNA molecule is used to make a protein during translation 
C) DNA is copied directly into a protein 
D) protein is copied into an RNA molecule during translation,and the information in that RNA molecule is used to make DNA during transcription 
E) DNA is copied into an RNA molecule during translation,and the information in that RNA molecule is used to make a protein during transcription

Question 20

Reverse transcriptase is an enzyme found in association with retroviral activity.It has the property of .

Accepted Answer

A) translation 
B) requiring no template 
C) synthesis of DNA from an RNA template 
D) most lysozymes 
E) synthesis of RNA from a DNA template 
A) translation 
B) requiring no template 
C) synthesis of DNA from an RNA template 
D) most lysozymes 
E) synthesis of RNA from a DNA template

Exam 10: DNA Structure and Analysis

The figure below is a nucleotide: - If this molecule were found in a DNA chain,the chemical group labeled X would be and the chemical labeled Y would be_________ .

Explain the technique of electrophoretic separation of DNA fragments.

The figure below is a nucleotide: - If you were told that this molecule could be found in either DNA or RNA,depending on the identity of the chem groups labeled X)and Y),the nitrogen- containing ring structure would have to be ______.

If 15% of the nitrogenous bases in a sample of DNA from a particular organism are thymine,what percentage should be cytosine?

You determine the sequence of an isolated gene,and wish to find its location in the genome.Propose a procedure using fluorescence to locate your gene of interest.

Some forms of genetic regulation can be facilitated by ______ .

The most specific name for an incoming monomer about to be incorporated into a DNA chain is ______.

In an analysis of the nucleotide composition of double- stranded DNA to see which bases are equivalent in concentration,which of the following would be true?

What are the two major components of the tobacco mosaic virus?

The form of DNA that is observed to adopt a left- handed helix is ______ .

In the classic experiment conducted by Hershey and Chase,why was the pellet radioactive in the centrifuge tube that contained bacteria with viruses?

Briefly define transformation and describe the relationship between the phenomenon of transformation and the discovery that DNA is the genetic material in bacteria.

When calculating a molecule's Svedberg coefficient,the rate of sedimentation is affected by the molecule's ______.

Match the function of DNA on the left with the appropriate description on the right. Which of the choices below is correct?

The figure below is a nucleotide: - If this molecule were found in an RNA chain,the chemical group labeled X would be and the chemic labeled Y would be _________ .

Compare and contrast the principal types of RNA in terms of their cellular roles,relative abundance,and variation in length.

Identify the nitrogenous bases and pentose sugars in DNA and RNA.

Which type of rRNA can be found in both prokaryotes and eukaryotes?

The Central Dogma specifies that the information in __________.

Reverse transcriptase is an enzyme found in association with retroviral activity.It has the property of .

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Extensions of Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Replication and Recombination

DNA Organization in Chromosomes

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Bacteria

Transcriptional Regulation in Eukaryotes

Post-Transcriptional Regulation in Eukaryotes

Epigenetic Regulation in Eukaryotes

Recombinant Dna Technology

Genomic Analysis

Applications of Genetic Engineering and Biotechnology

Developmental Genetics

Cancer Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

CRISPR and Genomic Editing

DNA Forensics

Genomics and Precision Medicine

Genetically Modified Foods

Gene Therapy

Advances in Neurogenetics: The Study of Huntington Disease

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