Question 1

What are the three things DNA must be able to do in order to serve as the genetic material?

Accepted Answer

In order to serve as the genet

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not a level of regulation of gene expression?

Accepted Answer

A)  Pretranscriptional 
B)  Transcriptional 
C)  Posttranscriptional 
D)  Prereplicational 
E)  Translational 
A)  Pretranscriptional 
B)  Transcriptional 
C)  Posttranscriptional 
D)  Prereplicational 
E)  Translational

Question 4

Which of the following is a benefit gained from learning how to sequence DNA?

Accepted Answer

A)  identification of faulty genes 
B)  development of treatments for diseases 
C)  modification of crops to increase yields 
D)  understanding of our evolutionary history 
E)  all of these are benefits gained from DNA sequencing 
A)  identification of faulty genes 
B)  development of treatments for diseases 
C)  modification of crops to increase yields 
D)  understanding of our evolutionary history 
E)  all of these are benefits gained from DNA sequencing

Question 5

The bases in DNA are complementary.A always binds with

Accepted Answer

A) A. 
B) C. 
C) G. 
D) T. 
E) U. 
A) A. 
B) C. 
C) G. 
D) T. 
E) U.

Question 6

Which of the following would be an example of pretranscriptional control?

Accepted Answer

A)  The chromosomes must decondense. 
B)  The mRNA is degraded before translation can occur. 
C)  The mRNA is processed before it leaves the nucleus. 
D)  The life expectancy of the mRNA molecules vary. 
E)  The polypeptide product is folded to form its functional conformation. 
A)  The chromosomes must decondense. 
B)  The mRNA is degraded before translation can occur. 
C)  The mRNA is processed before it leaves the nucleus. 
D)  The life expectancy of the mRNA molecules vary. 
E)  The polypeptide product is folded to form its functional conformation.

Question 7

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

Question 8

How similar are our genomes to those of a mouse?

Accepted Answer

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

Question 9

CRISPR was first discovered in fungi,where it acts as a form of immune defense against invading bacteria.

Accepted Answer

A) True 
 B)False

Question 10

The three-base sequence in a mRNA molecule is called a(n)

Accepted Answer

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

Question 11

Mitochondria also contain DNA.

Accepted Answer

A) True 
 B)False

Question 12

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 
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 13

How many genes did researchers think the human genome contained? How many did it contain?

Accepted Answer

A)  3 billion; 80,000 
B)  1 million; 1 million 
C)  25,000; 80,000 
D)  80,000; 23,000 
E)  125 million; 1 million 
A)  3 billion; 80,000 
B)  1 million; 1 million 
C)  25,000; 80,000 
D)  80,000; 23,000 
E)  125 million; 1 million

Question 14

How does modern day sequencing detect dyes on the nucleotides?

Accepted Answer

A)  radioactivity 
B)  dye terminator chemicals 
C)  DNA breakage 
D)  laser 
E)  by eye 
A)  radioactivity 
B)  dye terminator chemicals 
C)  DNA breakage 
D)  laser 
E)  by eye

Question 15

What is the goal of functional genomics?

Accepted Answer

A)  to determine all of the human genome sequence 
B)  to determine the genome sequence of other organisms useful to humans 
C)  to determine the purpose of our genes and how they form a human being 
D)  to determine how all the proteins within the cell interact 
E)  to carry out gene therapy for human diseases 
A)  to determine all of the human genome sequence 
B)  to determine the genome sequence of other organisms useful to humans 
C)  to determine the purpose of our genes and how they form a human being 
D)  to determine how all the proteins within the cell interact 
E)  to carry out gene therapy for human diseases

Question 16

Which of the following is the primary goal of bioinformatics?

Accepted Answer

A)  to find significant patterns in the information gained from DNA sequencing and proteomics 
B)  to input DNA and protein sequences into a computer 
C)  to model the three-dimensional shape of cellular proteins 
D)  to obtain the sequence of all the noncoding regions of the DNA 
E)  to insert genetic material into human cells for the treatment of a disorder 
A)  to find significant patterns in the information gained from DNA sequencing and proteomics 
B)  to input DNA and protein sequences into a computer 
C)  to model the three-dimensional shape of cellular proteins 
D)  to obtain the sequence of all the noncoding regions of the DNA 
E)  to insert genetic material into human cells for the treatment of a disorder

Question 17

Describe the similarities and differences between DNA and RNA.

Accepted Answer

DNA/RNA similarities: both are nucleic a

Question 18

How many different amino acids are found in proteins?

Accepted Answer

A)  5 
B)  10 
C)  20 
D)  50 
E)  over 100 
A)  5 
B)  10 
C)  20 
D)  50 
E)  over 100

Question 19

What is the role of the enzyme ligase in DNA replication?

Accepted Answer

A)  It unzips the double-stranded DNA. 
B)  It seals any breaks in the sugar-phosphate backbone. 
C)  It breaks the hydrogen bonds that hold the two strands of the DNA together. 
D)  It matches new bases to the old strand by complementary base pairing. 
E)  It folds the DNA into a coiled structure. 
A)  It unzips the double-stranded DNA. 
B)  It seals any breaks in the sugar-phosphate backbone. 
C)  It breaks the hydrogen bonds that hold the two strands of the DNA together. 
D)  It matches new bases to the old strand by complementary base pairing. 
E)  It folds the DNA into a coiled structure.

Question 20

More than 50% of the entire human genome codes for functional proteins.

Accepted Answer

A) True 
 B)False

Exam 22: Dna Biology and Technology

What are the three things DNA must be able to do in order to serve as the genetic material?

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

Which of the following is not a level of regulation of gene expression?

Which of the following is a benefit gained from learning how to sequence DNA?

The bases in DNA are complementary.A always binds with

Which of the following would be an example of pretranscriptional control?

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

How similar are our genomes to those of a mouse?

CRISPR was first discovered in fungi,where it acts as a form of immune defense against invading bacteria.

The three-base sequence in a mRNA molecule is called a(n)

Mitochondria also contain DNA.

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

How many genes did researchers think the human genome contained? How many did it contain?

How does modern day sequencing detect dyes on the nucleotides?

What is the goal of functional genomics?

Which of the following is the primary goal of bioinformatics?

Describe the similarities and differences between DNA and RNA.

How many different amino acids are found in proteins?

What is the role of the enzyme ligase in DNA replication?

More than 50% of the entire human genome codes for functional proteins.

Exploring Life and Science

Chemistry of Life

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Human Evolution

Ecology and the Nature of Ecosystems

Human Interactions With the Biosphere

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