Question 1

One of the stop codons to signal the end of the codon message is ____.

Accepted Answer

A) AAA 
B) TTT 
C) AUG 
D) GUA 
E) UAG 
A) AAA 
B) TTT 
C) AUG 
D) GUA 
E) UAG

Question 2

In which type of cell would you likely find polysomes?

Accepted Answer

A) endocrine cells 
B) oocytes 
C) sperm 
D) inactive skin cell 
E) red blood cells 
A) endocrine cells 
B) oocytes 
C) sperm 
D) inactive skin cell 
E) red blood cells

Question 3

The first animal to be cloned was a ____.

Accepted Answer

A) Sheep 
B) Horse 
C) Goat 
D) Dog 
E) Cat 
A) Sheep 
B) Horse 
C) Goat 
D) Dog 
E) Cat

Question 4

A microarray of thousands of DNA sequences stamped onto a glass plate is a ____.

Accepted Answer

A) Polysome 
B) DNA chip 
C) Plasmid 
D) Polygene 
E) DNA plate 
A) Polysome 
B) DNA chip 
C) Plasmid 
D) Polygene 
E) DNA plate

Question 5

Which process employs exposing cells cultured in the laboratory to DNA with a gene of interest?

Accepted Answer

A) transformation 
B) Transfection 
C) DNA fingerprinting 
D) polymerase chain reaction 
E) gel electrophoresis 
A) transformation 
B) Transfection 
C) DNA fingerprinting 
D) polymerase chain reaction 
E) gel electrophoresis

Question 6

Which of the following is NOT a component of DNA?

Accepted Answer

A) deoxyribose 
B) phosphate 
C) adenine 
D) uracil 
E) guanine 
A) deoxyribose 
B) phosphate 
C) adenine 
D) uracil 
E) guanine

Question 7

Which method is used in DNA sequencing to "visualize" nucleotides?

Accepted Answer

A) fluorescence 
B) electron microscopy 
C) radioactivity 
D) viral resistance 
E) drug resistance 
A) fluorescence 
B) electron microscopy 
C) radioactivity 
D) viral resistance 
E) drug resistance

Question 8

The human genome contains about how many nucleotides?

Accepted Answer

A) 1 million 
B) 3 million 
C) 30 million 
D) 1 billion 
E) 3 billion 
A) 1 million 
B) 3 million 
C) 30 million 
D) 1 billion 
E) 3 billion

Question 9

Which DNA base pairing is incorrect?

Accepted Answer

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

Question 10

An altered gene ____.

Accepted Answer

A) is a mutation 
B) is always harmful 
C) always changes the protein 
D) occurs only during meiosis 
E) only occurs during base-pairing substitutions 
A) is a mutation 
B) is always harmful 
C) always changes the protein 
D) occurs only during meiosis 
E) only occurs during base-pairing substitutions

Question 11

Which of the following might cause a gene mutation?

Accepted Answer

A) insertion of one additional nucleotide 
B) adenine changing to uracil 
C) thymine changing to uracil 
D) addition of a chromosome 
E) loss of a chromosome 
A) insertion of one additional nucleotide 
B) adenine changing to uracil 
C) thymine changing to uracil 
D) addition of a chromosome 
E) loss of a chromosome

Question 12

Which portion of mRNA protects the strand and serves as a ribosome attachment site?

Accepted Answer

A) promoter 
B) nucleotide cap 
C) codon 
D) transcript 
E) polymerase 
A) promoter 
B) nucleotide cap 
C) codon 
D) transcript 
E) polymerase

Question 13

Match between columns
                        Premises: contains codons
formed during transcription
nucleotides found with a double helix
shuttles amino acids
contains deoxyribose
double stranded
contains anticodons
contains equal amounts of adenine and thymine
found only in cytoplasm
component of ribosomes

Accepted Answer

The Answer of rRNA and tRNA and DNA and mRNA is...

One of the stop codons to signal the end of the codon message is ____.

In which type of cell would you likely find polysomes?

The first animal to be cloned was a ____.

A microarray of thousands of DNA sequences stamped onto a glass plate is a ____.

Which process employs exposing cells cultured in the laboratory to DNA with a gene of interest?

Which of the following is NOT a component of DNA?

Which method is used in DNA sequencing to "visualize" nucleotides?

The human genome contains about how many nucleotides?

Which DNA base pairing is incorrect?

An altered gene ____.

Which of the following might cause a gene mutation?

Which portion of mRNA protects the strand and serves as a ribosome attachment site?

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

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Exam 21: DNA Genes and Biotechnology

One of the stop codons to signal the end of the codon message is ____.

In which type of cell would you likely find polysomes?

The first animal to be cloned was a ____.

A microarray of thousands of DNA sequences stamped onto a glass plate is a ____.

Which process employs exposing cells cultured in the laboratory to DNA with a gene of interest?

Which of the following is NOT a component of DNA?

Which method is used in DNA sequencing to "visualize" nucleotides?

The human genome contains about how many nucleotides?

Which DNA base pairing is incorrect?

An altered gene ____.

Which of the following might cause a gene mutation?

Which portion of mRNA protects the strand and serves as a ribosome attachment site?

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