Question 1

Which of the following is not true about transcription factors?

Accepted Answer

A)   Transcription factors are DNA-binding proteins.
B)   Transcription factors are considered external cell regulators.
C)   There are many different types of transcription factors.
D)   Specialization of cells is determined/influenced by which transcription factors are active in the cell.
E)   Genes code for transcription factors.

Question 2

In what way are DNA and RNA similar?

Accepted Answer

A)  Both contain C,A,and G.
B)  Both contain deoxyribose.
C)  Both contain U,C,and G.
D)  Both are single stranded.
E)  Both form a double helix.

Question 3

When the sequence CGCAAUGCAAGGA is translated,the corresponding protein will be arginine-asparagine-alanine-arginine.

Accepted Answer

A) True 
 B)False

Question 4

5.Which of the following is not true about the structure of DNA?

Accepted Answer

A)  The sides of the ladder structure are made up of sugar and phosphate.
B)  The bases form the "rungs" of the ladder structure.
C)  The two strands are considered parallel.
D)  The ladder structure is twisted into a double helix.
E)  A always pairs with T and G always pairs with C.

Question 5

Which of the following is not true regarding ribosomes?

Accepted Answer

A)   They are composed of two subunits.
B)   They contain both RNA and protein.
C)   They contain an A site and a P site.
D)   They translate RNA into protein.
E)   They function within the nucleus.

Question 6

Which of the following is a product made from bacteria via recombinant DNA technology that promotes the health of plants?

Accepted Answer

A)   hepatitis B vaccine
B)   insulin
C)   clotting factor VIII
D)   growth hormone
E)   frost-minus substances

Question 7

Which of the following is not a type of small RNA?

Accepted Answer

A)   snoRNAs
B)   tRNA
C)   snRNAs
D)   miRNAs
E)   siRNAs

Question 8

Which of the following is the monomer unit of DNA?

Accepted Answer

A)   amino acids
B)   fatty acids
C)   nucleotides
D)   carbohydrate rings
E)   steroid rings

Question 9

Which of the following is not studied in the field of proteomics?

Accepted Answer

A)   protein-protein interactions
B)   protein concentration in a cell
C)   which genes give rise to which proteins
D)   cellular location of particular proteins
E)   chemical modifications of proteins

Question 10

How many stop codons are there for translation?

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   five

Question 11

Which of the following occurs during initiation of translation?

Accepted Answer

A)   The ribosome moves down one codon so that the A site is available to receive an incoming tRNA.
B)   The mRNA binds to the smaller of the two ribosomal subunits.
C)   The polypeptide lengthens one amino acid at a time.
D)   The ribosome dissociates into its two subunits and falls off the mRNA.
E)   One of the three stop codons is reached.

Question 12

As the RNA is being made,it is exported from the nucleus to the cytoplasm for translation.

Accepted Answer

A) True 
 B)False

Question 13

How similar are our genomes to those of a mouse?

Accepted Answer

A)   1%
B)   10%
C)   35%
D)   85%
E)   99%

Question 14

In ex vivo gene therapy,therapeutic DNA is injected into body cells with the use of a vector or carrier molecule.

Accepted Answer

A) True 
 B)False

Question 15

Exons in mRNAs are excised and left in the nucleus.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not a type of mRNA processing?

Accepted Answer

A)   adding a cap
B)   cleaving off the methionine
C)   adding a tail
D)   removing the introns
E)   splicing

Question 17

Which of the following is not a potential function of proteins?

Accepted Answer

A)   enzymes to catalyze chemical reactions
B)   neurotransmitters to aid the nervous system
C)   antibodies for the immune system
D)   storage form for genetic information
E)   hormones to change cellular activity

Question 18

The 3-base sequence in a mRNA molecule is called a/an

Accepted Answer

A)   codon.
B)   transcriptome.
C)   initiator.
D)   mutation.
E)   transposon.

Question 19

Which of the following are found within the monomer unit of DNA?

Accepted Answer

A)   phosphate, nitrogen base
B)   phosphate, amino acids
C)   fatty acids, sugars
D)   amino acids, nitrogen base
E)   nitrogen base, fatty acid

Question 20

Which of the following is a coding RNA?

Accepted Answer

A)   small RNA
B)   tRNA
C)   rRNA
D)   mRNA

Exam 21: DNA Biology and Technology

Which of the following is not a potential function of proteins?

Correct AnswerverifiedShow Answer

Which of the following are found within the monomer unit of DNA?

Correct AnswerverifiedShow Answer

As the RNA is being made,it is exported from the nucleus to the cytoplasm for translation.

Correct AnswerverifiedShow Answer

Which of the following is the monomer unit of DNA?

Correct AnswerverifiedShow Answer

5.Which of the following is not true about the structure of DNA?

Correct AnswerverifiedShow Answer

How many stop codons are there for translation?

Correct AnswerverifiedShow Answer

Which of the following is not studied in the field of proteomics?

Correct AnswerverifiedShow Answer

Which of the following is a coding RNA?

Correct AnswerverifiedShow Answer

Which of the following is not true regarding ribosomes?

Correct AnswerverifiedShow Answer

The 3-base sequence in a mRNA molecule is called a/an

Correct AnswerverifiedShow Answer

Which of the following is a product made from bacteria via recombinant DNA technology that promotes the health of plants?

Correct AnswerverifiedShow Answer

Exons in mRNAs are excised and left in the nucleus.

Correct AnswerverifiedShow Answer

Which of the following occurs during initiation of translation?

Correct AnswerverifiedShow Answer

How similar are our genomes to those of a mouse?

Correct AnswerverifiedShow Answer

In what way are DNA and RNA similar?

Correct AnswerverifiedShow Answer

Which of the following is not true about transcription factors?

Correct AnswerverifiedShow Answer

Which of the following is not a type of small RNA?

Correct AnswerverifiedShow Answer

In ex vivo gene therapy,therapeutic DNA is injected into body cells with the use of a vector or carrier molecule.

Correct AnswerverifiedShow Answer

When the sequence CGCAAUGCAAGGA is translated,the corresponding protein will be arginine-asparagine-alanine-arginine.

Correct AnswerverifiedShow Answer

Which of the following is not a type of mRNA processing?

Correct AnswerverifiedShow Answer

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