Question 1

Which is the structure of ATP?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 2

Which base is found in DNA or RNA,but not both?

Accepted Answer

A) Uracil 
B) Cytosine 
C) Adenine 
D) Guanine 
A) Uracil 
B) Cytosine 
C) Adenine 
D) Guanine

Question 3

What polypeptide would be synthesized from the following template strand of DNA: 3' CGG AGA CGG ACG 5'?

Accepted Answer

A) Ala-Ser-Ala-Cys 
B) Arg-Arg-Arg-Cys 
C) Gln-Lys-Gln-Met 
D) Ala-Ser-Ala-Thr 
E) Cys-Ala-Ser-Ala 
A) Ala-Ser-Ala-Cys 
B) Arg-Arg-Arg-Cys 
C) Gln-Lys-Gln-Met 
D) Ala-Ser-Ala-Thr 
E) Cys-Ala-Ser-Ala

Question 4

There was a mix-up in the hospital nursery and there is a question as to which baby belongs to a set of new parents. The given gel contains the DNA fingerprint of the new mother (Lane 1),the new father (Lane 2),and two infants (Lanes 3 and 4). The DNA fingerprinting indicates that the infant tested in Lane ________ is the child of these parents.

Accepted Answer

The answer of There was a mix-up in the hospital...

Question 5

For the DNA segment 3'-ACCTGCCTACCCG-5',the sequence of the mRNA molecule synthesized is 5'-UGGACGGAUGGGC-3'.

Accepted Answer

A) True 
 B)False

Question 6

Which is not one of the elements needed to amplify DNA by polymerase chain reaction (PCR)?

Accepted Answer

A) Two primers-short polynucleotides that are complementary to the two ends of the segment to be amplified 
B) A restriction endonuclease enzyme that cleaves DNA at specific locations 
C) The segment of DNA that must be copied 
D) A DNA polymerase enzyme that will catalyze the synthesis of a complementary strand of DNA from a template strand 
E) Nucleoside triphosphates that serve as the source of the nucleotides A,T,C,and G needed in the synthesis of the new strands of DNA 
A) Two primers-short polynucleotides that are complementary to the two ends of the segment to be amplified 
B) A restriction endonuclease enzyme that cleaves DNA at specific locations 
C) The segment of DNA that must be copied 
D) A DNA polymerase enzyme that will catalyze the synthesis of a complementary strand of DNA from a template strand 
E) Nucleoside triphosphates that serve as the source of the nucleotides A,T,C,and G needed in the synthesis of the new strands of DNA

Question 7

Which is not a stop codon?

Accepted Answer

A) UAA 
B) UGA 
C) UAG 
D) UGC 
A) UAA 
B) UGA 
C) UAG 
D) UGC

Question 8

Which statement about RNA codons is not true?

Accepted Answer

A) It is possible for two different codons to code for the same amino acid. 
B) There are 64 different codons. 
C) Three codons are "stop" codons,signaling the termination of protein synthesis. 
D) Three codons are "start" codons,signaling the start of protein synthesis. 
A) It is possible for two different codons to code for the same amino acid. 
B) There are 64 different codons. 
C) Three codons are "stop" codons,signaling the termination of protein synthesis. 
D) Three codons are "start" codons,signaling the start of protein synthesis.

Question 9

Which is a genetic disease?

Accepted Answer

A) Tay-Sachs disease 
B) Sickle cell anemia 
C) Galactosemia 
D) Huntington's disease 
E) All of the diseases are genetic diseases. 
A) Tay-Sachs disease 
B) Sickle cell anemia 
C) Galactosemia 
D) Huntington's disease 
E) All of the diseases are genetic diseases.

Question 10

When inserted into a bacterium,recombinant DNA can be used to prepare large quantities of useful proteins.

Accepted Answer

A) True 
 B)False

Question 11

A triplet codon is a sequence of three amino acids in a protein that signals for transcription.

Accepted Answer

A) True 
 B)False

Question 12

If 22% of the nucleotides in a sample of DNA contain the base adenine (A),then 22% of the nucleotides in the same sample of DNA contain the base guanine (G).

Accepted Answer

A) True 
 B)False

Question 13

In the process of translation,the genetic code contained in DNA is rewritten in mRNA,which leaves the nucleus and carries the information to the ribosomes for protein synthesis.

Accepted Answer

A) True 
 B)False

Question 14

Which is not one of the three stages in translation?

Accepted Answer

A) Termination 
B) Initiation 
C) Elongation 
D) Mutation 
A) Termination 
B) Initiation 
C) Elongation 
D) Mutation

Question 15

Which structure represents a nucleotide?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 16

Hydrogen bonding plays an important role in all but one of the items below. Which one does not involve hydrogen bonding?

Accepted Answer

A) DNA replication 
B) DNA double helix 
C) DNA primary structure 
D) Synthesis of mRNA from DNA 
A) DNA replication 
B) DNA double helix 
C) DNA primary structure 
D) Synthesis of mRNA from DNA

Question 17

A virus is an infectious agent consisting of a DNA molecule and an RNA molecule that is contained within a protein coating.

Accepted Answer

A) True 
 B)False

Question 18

Which is not a type of RNA molecule?

Accepted Answer

A) mRNA 
B) dRNA 
C) tRNA 
D) rRNA 
A) mRNA 
B) dRNA 
C) tRNA 
D) rRNA

Question 19

The double-stranded DNA helices wind around a core of protein molecules called ________ to form a chain of ________.

Accepted Answer

histones;

Question 20

If a single strand of a gene contains 726 bases,242 amino acids will make up the polypeptide prepared from it,assuming every base of the gene is transcribed and then translated.

Accepted Answer

A) True 
 B)False

Exam 22: Nucleic Acids and Protein Synthesis

Which is the structure of ATP?

Which base is found in DNA or RNA,but not both?

What polypeptide would be synthesized from the following template strand of DNA: 3' CGG AGA CGG ACG 5'?

For the DNA segment 3'-ACCTGCCTACCCG-5',the sequence of the mRNA molecule synthesized is 5'-UGGACGGAUGGGC-3'.

Which is not one of the elements needed to amplify DNA by polymerase chain reaction (PCR)?

Which is not a stop codon?

Which statement about RNA codons is not true?

Which is a genetic disease?

When inserted into a bacterium,recombinant DNA can be used to prepare large quantities of useful proteins.

A triplet codon is a sequence of three amino acids in a protein that signals for transcription.

If 22% of the nucleotides in a sample of DNA contain the base adenine (A),then 22% of the nucleotides in the same sample of DNA contain the base guanine (G).

In the process of translation,the genetic code contained in DNA is rewritten in mRNA,which leaves the nucleus and carries the information to the ribosomes for protein synthesis.

Which is not one of the three stages in translation?

Which structure represents a nucleotide?

Hydrogen bonding plays an important role in all but one of the items below. Which one does not involve hydrogen bonding?

A virus is an infectious agent consisting of a DNA molecule and an RNA molecule that is contained within a protein coating.

Which is not a type of RNA molecule?

The double-stranded DNA helices wind around a core of protein molecules called ________ to form a chain of ________.

If a single strand of a gene contains 726 bases,242 amino acids will make up the polypeptide prepared from it,assuming every base of the gene is transcribed and then translated.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

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

Filters

The double-stranded DNA helices wind around a core of protein molecules called to form a chain of .