Question 1

Which of the following is the name of the nucleoside formed from D-ribose and cytosine?

Accepted Answer

A) Ribosine 
B) Cytose 
C) Cytidine 
D) Cytamine 
A) Ribosine 
B) Cytose 
C) Cytidine 
D) Cytamine

Question 2

How many hydrogen bonds form between a G-C base pair in a DNA double helix?

Accepted Answer

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

Question 3

Almost any type of cell-skin,saliva,semen,blood,etc.-can be used to obtain a DNA fingerprint of an individual.

Accepted Answer

A) True 
 B)False

Question 4

In the ________ a portion of a DNA molecule is amplified,producing millions of copies of a single molecule.

Accepted Answer

polymerase

Question 5

A/An ________ mutation occurs when one or more nucleotides is added to a DNA molecule.

Accepted Answer

The answer of A/An ________ mutation occurs when one or...

Question 6

Nucleic acids are formed by joining the 3'-OH group of one nucleotide with the 5'-phosphate of a second nucleotide in a phosphodiester linkage.

Accepted Answer

A) True 
 B)False

Question 7

Which statement concerning the biomolecules DNA is incorrect?

Accepted Answer

A) DNA stands for diribonucleic acid. 
B) DNA stores the genetic information of an organism and transmits that information from one generation to another. 
C) DNA molecules are located in the nucleus of a cell. 
D) Four common bases are found in DNA: adenine,cytosine,guanine,and thymine. 
A) DNA stands for diribonucleic acid. 
B) DNA stores the genetic information of an organism and transmits that information from one generation to another. 
C) DNA molecules are located in the nucleus of a cell. 
D) Four common bases are found in DNA: adenine,cytosine,guanine,and thymine.

Question 8

Which type of mutation occurs when a DNA sequence changes from GGA TCA CCG GAA…. to GGA TCC CGG….?

Accepted Answer

A) A deletion mutation 
B) An insertion mutation 
C) A point mutation 
D) A transcription mutation 
A) A deletion mutation 
B) An insertion mutation 
C) A point mutation 
D) A transcription mutation

Question 9

The structure shown is a segment of an RNA strand.

Accepted Answer

A) True 
 B)False

Question 10

When the base guanine is added to the 2'-OH of the monosaccharide ribose,the product is guanosine.

Accepted Answer

A) True 
 B)False

Question 11

A DNA sequence segment is initially AAA ATG TGA CCC. Which mutation would have the most significant effect on the resultant protein synthesized?

Accepted Answer

A) AAG ATG TGA CCC 
B) AAA ATT TGA CCC 
C) AAA ATG GAC CCU 
D) AAA ATG TGA CGC 
A) AAG ATG TGA CCC 
B) AAA ATT TGA CCC 
C) AAA ATG GAC CCU 
D) AAA ATG TGA CGC

Question 12

Which codon does not code for alanine?

Accepted Answer

A) GCG 
B) GCU 
C) GCC 
D) GCA 
E) GAC 
A) GCG 
B) GCU 
C) GCC 
D) GCA 
E) GAC

Question 13

Which nucleotide abbreviation is not valid?

Accepted Answer

A) dAMP 
B) AMP 
C) dUMP 
D) CMP 
A) dAMP 
B) AMP 
C) dUMP 
D) CMP

Question 14

What is the abbreviation of the polynucleotide shown?

Accepted Answer

A) TAC 
B) CAT 
C) CGT 
D) TGC 
A) TAC 
B) CAT 
C) CGT 
D) TGC

Question 15

In the transcription "cartoon" shown,the direction of transcription is from right to left.

Accepted Answer

A) True 
 B)False

Question 16

Which sequence is not possible?

Accepted Answer

A) GAGAA 
B) TAGGG 
C) UTAGA 
D) CCCCC 
A) GAGAA 
B) TAGGG 
C) UTAGA 
D) CCCCC

Question 17

How many different mRNA sequences code for the dipeptide Leu-Ile?

Accepted Answer

A) 1 
B) 2 
C) 9 
D) 18 
A) 1 
B) 2 
C) 9 
D) 18

Question 18

Each individual tRNA contains ________.

Accepted Answer

A) a base sequence that is identical to the informational strand of DNA 
B) the sequence of codons that determines the order of amino acids in the protein 
C) an anticodon of three nucleotides that is complementary to the codon in mRNA and identifies individual amino acids 
D) an anticodon complementary to any of the three stop codons 
A) a base sequence that is identical to the informational strand of DNA 
B) the sequence of codons that determines the order of amino acids in the protein 
C) an anticodon of three nucleotides that is complementary to the codon in mRNA and identifies individual amino acids 
D) an anticodon complementary to any of the three stop codons

Exam 22: Nucleic Acids and Protein Synthesis

Which of the following is the name of the nucleoside formed from D-ribose and cytosine?

How many hydrogen bonds form between a G-C base pair in a DNA double helix?

Almost any type of cell-skin,saliva,semen,blood,etc.-can be used to obtain a DNA fingerprint of an individual.

In the ________ a portion of a DNA molecule is amplified,producing millions of copies of a single molecule.

A/An ________ mutation occurs when one or more nucleotides is added to a DNA molecule.

Nucleic acids are formed by joining the 3'-OH group of one nucleotide with the 5'-phosphate of a second nucleotide in a phosphodiester linkage.

Which statement concerning the biomolecules DNA is incorrect?

Which type of mutation occurs when a DNA sequence changes from GGA TCA CCG GAA…. to GGA TCC CGG….?

The structure shown is a segment of an RNA strand.

When the base guanine is added to the 2'-OH of the monosaccharide ribose,the product is guanosine.

A DNA sequence segment is initially AAA ATG TGA CCC. Which mutation would have the most significant effect on the resultant protein synthesized?

Which codon does not code for alanine?

Which nucleotide abbreviation is not valid?

What is the abbreviation of the polynucleotide shown?

In the transcription "cartoon" shown,the direction of transcription is from right to left.

Which sequence is not possible?

How many different mRNA sequences code for the dipeptide Leu-Ile?

Each individual tRNA contains ________.

Matter and Measurement

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Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

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Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

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