Question 1

Arrange the principal forms of RNA in order of abundance from LEAST abundant to MOST abundant.

Accepted Answer

A)  tRNA,rRNA,mRNA
B)  mRNA,tRNA,rRNA
C)  rRNA,tRNA,mRNA
D)  tRNA,mRNA,rRNA
E)  mRNA,rRNA,tRNAF) A) and E)
G) A) and B)

Question 2

Genetic functions in a eukaryote can be observed in __________.

Accepted Answer

A)  mitchondria
B)  mitchondria and chloroplasts
C)  the nucleus
D)  chloroplasts
E)  chloroplasts,mitchondria,and the nucleusF) B) and E)
G) B) and C)

Question 3

Why would D- DNA and E- DNA be unlikely to be found in the genomes of living organisms?

Accepted Answer

They only occur in helices lac...

Question 4

The figure below shows a representative dinucleotide: 
- This figure represents __________,and the arrow is closest to the__________ end.

Accepted Answer

A)  RNA; 5'
B)  RNA; 3'
C)  DNA; 3'
D)  DNA; 5'E) C) and D)
F) None of the above

Question 5

Compared with B- DNA,A- DNA is  ______compact,has ______ base pairs per turn,and is a ______ helix.

Accepted Answer

A)  more; more; right- handed
B)  less; fewer; left- handed
C)  more; fewer; left- handed
D)  more; fewer; right- handed
E)  less; more; right- handedF) D) and E)
G) A) and D)

Question 6

What does it mean for a double helix of DNA to be antiparallel and complementary?

Accepted Answer

When the two strands in double- stranded...

Question 7

Explain the tetranucleotide hypothesis and its relationship to the substance referred to as nuclein.

Accepted Answer

In the 1860s,Friedrich Miescher isolated...

Question 8

The classic Hershey and Chase 1952) experiment that offered evidence in support of DNA being the genetic material in bacteriophages made use of which of the following labeled components ?

Accepted Answer

A)  oxygen and phosphorus
B)  hydrogen
C)  tritium
D)  nitrogen and oxygen
E)  phosphorus and sulfurF) B) and C)
G) A) and C)

Question 9

A particular__________ carry the information for making a particular protein,but__________ can be used to make any protein.

Accepted Answer

A)  gene and ribosome; a tRNA and an mRNA
B)  gene and tRNA; a ribosome and an mRNA
C)  tRNA and ribosome; a gene and an mRNA
D)  ribosome and mRNA; a gene and a tRNA
E)  gene and mRNA; a ribosome and a tRNAF) None of the above
G) A) and E)

Question 10

The covalent linkage between the monomers in a dinucleotide is an______.

Accepted Answer

A)  phosphodiester bond
B)  peptide bond
C)  ester bond
D)  ionic bond
E)  disulfide bondF) A) and B)
G) All of the above

Question 11

Who discovered that DNA was the genetic material or "transforming principle" that could convert nonvirulent R- type Diplococcus pneumoniae bacterium to the virulent S- type?

Accepted Answer

A)  Avery,MacLeod,and McCarty
B)  Hershey and Chase
C)  Frederick Griffith
D)  Watson,Crick,Wilkins,and Franklin
E)  Erwin ChargaffF) B) and C)
G) A) and C)

Question 12

Consider the following two statements about DNA melting temperature:

1) 	The melting temperature of a sample of DNA is the temperature at which 50% of the double helices in the sa have completely denatured.
2) 	A molecule with 53% G—C base pairs would have a higher melting temperature than a molecule of equivale length with 53% A—T base pairs.

Determine which one of the statements below is CORRECT.

Accepted Answer

A)  Statement 1) is true; statement 2) is false.
B)  Statement 1) and statement 2) are true.
C)  Statement 1) and statement 2) are false.
D)  Statement 1) is false; statement 2) is true.E) All of the above
F) A) and B)

Question 13

The figure below shows a representative dinucleotide:  
-Spleen diesterase is an enzyme that breaks the covalent bond that connects the phosphate to the 5' carbon.If the dinucleotide is digested with spleen diesterase,to which base and to which carbon on the sugar is the phosphate attached?

Accepted Answer

A)  A; 5'
B)  T; 5'
C)  T; 3'
D)  A; 3'E) None of the above
F) A) and B)

Question 14

What is the difference between a polynucleotide and an oligonucleotide?

Accepted Answer

Polynucleotides are polymers l...

Question 15

In base pair between a guanine and a cytosine, ______hydrogen bonds form between a partially positive hydrogen on the guanine and a more electronegative atom on the cytosine.

Accepted Answer

A)  1
B)  4
C)  3
D)  2
E)  0F) A) and B)
G) B) and C)

Question 16

Regarding the structure of DNA,the covalently arranged combination of a deoxyribose and a nitrogenous base would be called an______ .

Accepted Answer

A)  nucleotide
B)  nucleoside
C)  ribonucleotide
D)  nucleoside monophosphate
E)  oligonucleotideF) B) and D)
G) A) and B)

Question 17

The base content of a sample of nucleic acid is as follows: A = 31%,G = 31%,T = 19%,C = 19%.What conclusion should be drawn from this information?

Accepted Answer

A)  This nucleic acid is double- stranded DNA.
B)  This nucleic acid is made of RNA.
C)  The purine/pyrimidine ratio in this molecule fits Chargaff's data.
D)  The strands in this molecule are parallel rather than antiparallel.
E)  This nucleic acid is single- stranded DNA.F) B) and D)
G) All of the above

Question 18

In the mid- 1940s,genetic information was known to consist of__________ .

Accepted Answer

A)  nucleic acid and lipid
B)  lipid and protein
C)  nucleic acid and protein
D)  protein and carbohydrate
E)  carbohydrate and nucleic acidF) B) and C)
G) B) and E)

Question 19

How do urea and NaCl influence temperature- induced DNA melting?

Accepted Answer

Urea competes for hydrogen bonds; thus,t...

Question 20

Any two nucleic acid fragments will spontaneously hybridize if they encounter each other as long as they are  ______and ______.

Accepted Answer

A)  complementary; antiparallel
B)  primed; replicated
C)  DNA; RNA
D)  transcribed; translated
E)  identical; compatibleF) B) and C)
G) All of the above

Exam 10: DNA Structure and Analysis

In base pair between a guanine and a cytosine, ______hydrogen bonds form between a partially positive hydrogen on the guanine and a more electronegative atom on the cytosine.

Correct Answer
verified

What does it mean for a double helix of DNA to be antiparallel and complementary?

Correct Answer
verified
When the two strands in double- stranded...
View Answer

The classic Hershey and Chase 1952) experiment that offered evidence in support of DNA being the genetic material in bacteriophages made use of which of the following labeled components ?

Correct Answer
verified

In the mid- 1940s,genetic information was known to consist of__________ .

Correct Answer
verified

Why would D- DNA and E- DNA be unlikely to be found in the genomes of living organisms?

Correct Answer
verified
They only occur in helices lac...
View Answer

The figure below shows a representative dinucleotide: -Spleen diesterase is an enzyme that breaks the covalent bond that connects the phosphate to the 5' carbon.If the dinucleotide is digested with spleen diesterase,to which base and to which carbon on the sugar is the phosphate attached?

Correct Answer
verified

Arrange the principal forms of RNA in order of abundance from LEAST abundant to MOST abundant.

Correct Answer
verified

Regarding the structure of DNA,the covalently arranged combination of a deoxyribose and a nitrogenous base would be called an______ .

Correct Answer
verified

Compared with B- DNA,A- DNA is compact,has base pairs per turn,and is a __ helix.

Correct Answer
verified

What is the difference between a polynucleotide and an oligonucleotide?

Correct Answer
verified
Polynucleotides are polymers l...
View Answer

The base content of a sample of nucleic acid is as follows: A = 31%,G = 31%,T = 19%,C = 19%.What conclusion should be drawn from this information?

Correct Answer
verified

The covalent linkage between the monomers in a dinucleotide is an______.

Correct Answer
verified

Who discovered that DNA was the genetic material or "transforming principle" that could convert nonvirulent R- type Diplococcus pneumoniae bacterium to the virulent S- type?

Correct Answer
verified

A particular carry the information for making a particular protein,but can be used to make any protein.

Correct Answer
verified

Explain the tetranucleotide hypothesis and its relationship to the substance referred to as nuclein.

Correct Answer
verified
In the 1860s,Friedrich Miescher isolated...
View Answer

The figure below shows a representative dinucleotide: - This figure represents ,and the arrow is closest to the end.

Correct Answer
verified

Genetic functions in a eukaryote can be observed in __________.

Correct Answer
verified

How do urea and NaCl influence temperature- induced DNA melting?

Correct Answer
verified
Urea competes for hydrogen bonds; thus,t...
View Answer

Correct Answer
verified

Any two nucleic acid fragments will spontaneously hybridize if they encounter each other as long as they are and .

Correct Answer
verified

Exam 10: DNA Structure and Analysis

In base pair between a guanine and a cytosine, ______hydrogen bonds form between a partially positive hydrogen on the guanine and a more electronegative atom on the cytosine.

Correct AnswerverifiedShow Answer

What does it mean for a double helix of DNA to be antiparallel and complementary?

Correct AnswerverifiedWhen the two strands in double- stranded...View AnswerShow Answer

The classic Hershey and Chase 1952) experiment that offered evidence in support of DNA being the genetic material in bacteriophages made use of which of the following labeled components ?

Correct AnswerverifiedShow Answer

In the mid- 1940s,genetic information was known to consist of__________ .

Correct AnswerverifiedShow Answer

Why would D- DNA and E- DNA be unlikely to be found in the genomes of living organisms?

Correct AnswerverifiedThey only occur in helices lac...View AnswerShow Answer

The figure below shows a representative dinucleotide: -Spleen diesterase is an enzyme that breaks the covalent bond that connects the phosphate to the 5' carbon.If the dinucleotide is digested with spleen diesterase,to which base and to which carbon on the sugar is the phosphate attached?

Correct AnswerverifiedShow Answer

Arrange the principal forms of RNA in order of abundance from LEAST abundant to MOST abundant.

Correct AnswerverifiedShow Answer

Regarding the structure of DNA,the covalently arranged combination of a deoxyribose and a nitrogenous base would be called an______ .

Correct AnswerverifiedShow Answer

Compared with B- DNA,A- DNA is ______compact,has ______ base pairs per turn,and is a ______ helix.

Correct AnswerverifiedShow Answer

What is the difference between a polynucleotide and an oligonucleotide?

Correct AnswerverifiedPolynucleotides are polymers l...View AnswerShow Answer

The base content of a sample of nucleic acid is as follows: A = 31%,G = 31%,T = 19%,C = 19%.What conclusion should be drawn from this information?

Correct AnswerverifiedShow Answer

The covalent linkage between the monomers in a dinucleotide is an______.

Correct AnswerverifiedShow Answer

Who discovered that DNA was the genetic material or "transforming principle" that could convert nonvirulent R- type Diplococcus pneumoniae bacterium to the virulent S- type?

Correct AnswerverifiedShow Answer

A particular__________ carry the information for making a particular protein,but__________ can be used to make any protein.

Correct AnswerverifiedShow Answer

Explain the tetranucleotide hypothesis and its relationship to the substance referred to as nuclein.

Correct AnswerverifiedIn the 1860s,Friedrich Miescher isolated...View AnswerShow Answer

The figure below shows a representative dinucleotide: - This figure represents __________,and the arrow is closest to the__________ end.

Correct AnswerverifiedShow Answer

Genetic functions in a eukaryote can be observed in __________.

Correct AnswerverifiedShow Answer

How do urea and NaCl influence temperature- induced DNA melting?

Correct AnswerverifiedUrea competes for hydrogen bonds; thus,t...View AnswerShow Answer

Correct AnswerverifiedShow Answer

Any two nucleic acid fragments will spontaneously hybridize if they encounter each other as long as they are ______and ______.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
When the two strands in double- stranded...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
They only occur in helices lac...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Compared with B- DNA,A- DNA is compact,has base pairs per turn,and is a __ helix.

Correct Answer
verified

Correct Answer
verified
Polynucleotides are polymers l...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A particular carry the information for making a particular protein,but can be used to make any protein.

Correct Answer
verified

Correct Answer
verified
In the 1860s,Friedrich Miescher isolated...
View Answer

The figure below shows a representative dinucleotide: - This figure represents ,and the arrow is closest to the end.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Urea competes for hydrogen bonds; thus,t...
View Answer

Correct Answer
verified

Any two nucleic acid fragments will spontaneously hybridize if they encounter each other as long as they are and .

Correct Answer
verified