Question 1

Each strand of the DNA molecule serves what function during DNA replication?

Accepted Answer

A) source of amino acids 
B) source of bases 
C) enzymatic function 
D) DNA unwinding 
E) DNA template 
A) source of amino acids 
B) source of bases 
C) enzymatic function 
D) DNA unwinding 
E) DNA template

Question 2

The study of genomes is known as ____.

Accepted Answer

A) genomics 
B) genomorphology 
C) bionomics 
D) biomapping 
E) genosequencing 
A) genomics 
B) genomorphology 
C) bionomics 
D) biomapping 
E) genosequencing

Question 3

Enzymes used to cut DNA molecules in recombinant DNA research are ____.

Accepted Answer

A) ligases 
B) restriction enzymes 
C) transcriptases 
D) DNA polymerases 
E) replicases 
A) ligases 
B) restriction enzymes 
C) transcriptases 
D) DNA polymerases 
E) replicases

Question 4

The manmade, short nucleotide sequence that base-pairs with any complementary sequences in DNA is a(n)____.

Accepted Answer

A) primer 
B) exon 
C) intron 
D) restriction enzyme 
E) polysome 
A) primer 
B) exon 
C) intron 
D) restriction enzyme 
E) polysome

Question 5

The nucleotide sequence of a gene is ____.

Accepted Answer

A) made from amino acids 
B) found in the DNA backbone 
C) found on both sides of the DNA molecule 
D) codes the sequence of amino acids for a polypeptide 
E) larger than a chromosome 
A) made from amino acids 
B) found in the DNA backbone 
C) found on both sides of the DNA molecule 
D) codes the sequence of amino acids for a polypeptide 
E) larger than a chromosome

Question 6

Which process takes place in the cytoplasm?

Accepted Answer

A) DNA replication 
B) transcription 
C) duplication 
D) translation 
E) transition 
A) DNA replication 
B) transcription 
C) duplication 
D) translation 
E) transition

Question 7

To make a clone of an adult animal the nucleus of what cell is removed and replaced?

Accepted Answer

A) unfertilized egg 
B) fertilized egg 
C) Sperm 
D) stem cell 
E) red blood cell 
A) unfertilized egg 
B) fertilized egg 
C) Sperm 
D) stem cell 
E) red blood cell

Question 8

The molecule that forms temporary structures where proteins are assembled is ____.

Accepted Answer

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

Question 9

What are the non-coding sequences in pre-mRNA? ​

Accepted Answer

A) promoter 
B) nucleotide cap 
C) introns 
D) transcript 
E) exon 
A) promoter 
B) nucleotide cap 
C) introns 
D) transcript 
E) exon

Question 10

Figure 21.8A 
Using the information in the accompanying figure, explain what short polypeptide is produced from the DNA segment AAG GGC CTT. Include in your answer the role of mRNA and tRNA.

Accepted Answer

​ The DNA segment AAG GGC CTT contains t

Question 11

The human genome contains about how many genes?

Accepted Answer

A) 1,000 
B) 10,000 
C) 20,000 
D) 100,000 
E) 200,000 
A) 1,000 
B) 10,000 
C) 20,000 
D) 100,000 
E) 200,000

Question 12

A set of three consecutive bases in mRNA is known as a(n)____.

Accepted Answer

A) triplet 
B) codon 
C) anti-codon 
D) codex 
E) tri-codon 
A) triplet 
B) codon 
C) anti-codon 
D) codex 
E) tri-codon

Question 13

Which condition is NOT associated with chromosome #21?

Accepted Answer

A) sickle-cell anemia 
B) Down syndrome 
C) ALS 
D) epilepsy 
E) schizophrenia 
A) sickle-cell anemia 
B) Down syndrome 
C) ALS 
D) epilepsy 
E) schizophrenia

Question 14

If a DNA triplet is ATC, what is the corresponding tRNA anti-codon?

Accepted Answer

A) ATC 
B) UAG 
C) AUC 
D) UAC 
E) TAG 
A) ATC 
B) UAG 
C) AUC 
D) UAC 
E) TAG

Question 15

Which molecule ultimately gets translated into a protein?

Accepted Answer

A) DNA 
B) rRNA 
C) mRNA 
D) tRNA 
E) RNA polymerase 
A) DNA 
B) rRNA 
C) mRNA 
D) tRNA 
E) RNA polymerase

Question 16

Of all the different codons that exist, three of them ____.

Accepted Answer

A) are involved in mutations 
B) do not specify a particular amino acid 
C) cannot be copied 
D) determine amino acids, and in addition, also provide punctuation or instructions such as "stop" 
E) do not specify a particular amino acid, but do provide punctuation or instructions such as "stop" 
A) are involved in mutations 
B) do not specify a particular amino acid 
C) cannot be copied 
D) determine amino acids, and in addition, also provide punctuation or instructions such as "stop" 
E) do not specify a particular amino acid, but do provide punctuation or instructions such as "stop"

Question 17

The normal use of restriction enzymes by bacteria is to ____.

Accepted Answer

A) integrate viral DNA 
B) cut apart short sequences of bases in DNA 
C) repair "sticky ends 
D) copy the bacterial genes 
E) clone DNA 
A) integrate viral DNA 
B) cut apart short sequences of bases in DNA 
C) repair "sticky ends 
D) copy the bacterial genes 
E) clone DNA

Question 18

Which genetic disorder is associated with DNA repair issues?

Accepted Answer

A) sickle-cell anemia 
B) Alzheimer's disease 
C) Werner's syndrome 
D) Will's disease 
E) cystic fibrosis 
A) sickle-cell anemia 
B) Alzheimer's disease 
C) Werner's syndrome 
D) Will's disease 
E) cystic fibrosis

Question 19

The final RNA strand made during transcription is known as a(n)____.

Accepted Answer

A) promoter 
B) nucleotide cap 
C) codon 
D) transcript 
E) anti-codon 
A) promoter 
B) nucleotide cap 
C) codon 
D) transcript 
E) anti-codon

Question 20

Codons correspond to how many different amino acids?

Accepted Answer

A) 3 
B) 9 
C) 16 
D) 20 
E) 128 
A) 3 
B) 9 
C) 16 
D) 20 
E) 128

Exam 21: DNA Genes and Biotechnology

Each strand of the DNA molecule serves what function during DNA replication?

The study of genomes is known as ____.

Enzymes used to cut DNA molecules in recombinant DNA research are ____.

The manmade, short nucleotide sequence that base-pairs with any complementary sequences in DNA is a(n)____.

The nucleotide sequence of a gene is ____.

Which process takes place in the cytoplasm?

To make a clone of an adult animal the nucleus of what cell is removed and replaced?

The molecule that forms temporary structures where proteins are assembled is ____.

What are the non-coding sequences in pre-mRNA? ​

Figure 21.8A Using the information in the accompanying figure, explain what short polypeptide is produced from the DNA segment AAG GGC CTT. Include in your answer the role of mRNA and tRNA.

The human genome contains about how many genes?

A set of three consecutive bases in mRNA is known as a(n)____.

Which condition is NOT associated with chromosome #21?

If a DNA triplet is ATC, what is the corresponding tRNA anti-codon?

Which molecule ultimately gets translated into a protein?

Of all the different codons that exist, three of them ____.

The normal use of restriction enzymes by bacteria is to ____.

Which genetic disorder is associated with DNA repair issues?

The final RNA strand made during transcription is known as a(n)____.

Codons correspond to how many different amino acids?

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

Filters

What are the non-coding sequences in pre-mRNA?