Question 1

If a DNA triplet is ATC, what is the corresponding mRNA codon?

Accepted Answer

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

Question 2

Because DNA replication takes place at an extremely rapid rate, a cell must repair breaks in a strand of DNA up to approximately how many times in an hour?

Accepted Answer

A) 10 
B) 1,000 
C) 10,000 
D) 200,000 
E) 2,000,000 
A) 10 
B) 1,000 
C) 10,000 
D) 200,000 
E) 2,000,000

Question 3

In DNA the amount of adenine equals the amount of ____.

Accepted Answer

A) guanine 
B) thymine 
C) cytosine 
D) uracil 
E) tyrosine 
A) guanine 
B) thymine 
C) cytosine 
D) uracil 
E) tyrosine

Question 4

Recombinant DNA is associated with all of the following EXCEPT ____.

Accepted Answer

A) genetic engineering 
B) new biological techniques 
C) restriction enzymes 
D) bacterial plasmids 
E) viral infections 
A) genetic engineering 
B) new biological techniques 
C) restriction enzymes 
D) bacterial plasmids 
E) viral infections

Question 5

Sickle-cell anemia is caused by ____.

Accepted Answer

A) an RNA error 
B) expansion mutation 
C) deletion mutation 
D) fragile X syndrome 
E) a base-pair substitution mutation 
A) an RNA error 
B) expansion mutation 
C) deletion mutation 
D) fragile X syndrome 
E) a base-pair substitution mutation

Question 6

Splicing of mRNA ____.

Accepted Answer

A) takes place in the nucleus 
B) involves removing the nucleotide cap 
C) involves removing exons leaving behind introns 
D) occurs prior to transcription 
E) occurs after translation 
A) takes place in the nucleus 
B) involves removing the nucleotide cap 
C) involves removing exons leaving behind introns 
D) occurs prior to transcription 
E) occurs after translation

Question 7

Each codon consists of how many bases?

Accepted Answer

A) 3 
B) 9 
C) 16 
D) 64 
E) 128 
A) 3 
B) 9 
C) 16 
D) 64 
E) 128

Question 8

The relationship between DNA and RNA is ____.

Accepted Answer

A) antagonistic 
B) opposite 
C) exact duplicate 
D) complementary 
E) unrelated 
A) antagonistic 
B) opposite 
C) exact duplicate 
D) complementary 
E) unrelated

Question 9

The fragments of chromosomes split by restriction enzymes ____.

Accepted Answer

A) have fused ends 
B) have specific sequences of nucleotides 
C) have sticky ends 
D) form a circle 
E) have specific sequences of nucleotides and sticky ends 
A) have fused ends 
B) have specific sequences of nucleotides 
C) have sticky ends 
D) form a circle 
E) have specific sequences of nucleotides and sticky ends

Question 10

Making mRNA from DNA is known as ____.

Accepted Answer

A) translation 
B) transcription 
C) polymerase 
D) replication 
E) promoter 
A) translation 
B) transcription 
C) polymerase 
D) replication 
E) promoter

Question 11

Each round of reactions in PCR ____ the number of DNA molecules from the target site.

Accepted Answer

A) doubles 
B) triples 
C) quadruples 
D) quintuples 
E) does not affect 
A) doubles 
B) triples 
C) quadruples 
D) quintuples 
E) does not affect

Question 12

Unfortunately, several of the children who were genetically treated for SCID-X1 have since developed ____.

Accepted Answer

A) sickle cell anemia 
B) Diabetes 
C) cystic fibrosis 
D) Hemophilia 
E) Leukemia 
A) sickle cell anemia 
B) Diabetes 
C) cystic fibrosis 
D) Hemophilia 
E) Leukemia

Question 13

Match between columns
                        Premises: portion of tRNA that corresponds to mRNA
three consecutive nucleotides in mRNA
process where mRNA message is converted to protein
mRNA production
section of mRNA that does not carry protein-building instructions
pairs with adenine in DNA
pairs with adenine in RNA
DNA sequence that signals start of gene
UAA
functional molecule left behind after mRNA splicing

Accepted Answer

The Answer of Promoter and Translation and Anticodon and Thymine is...

Question 14

If three consecutive bases in DNA are ATC, what is the corresponding codon?

Accepted Answer

A) UUG 
B) TAC 
C) ATC 
D) TAG 
E) UAG 
A) UUG 
B) TAC 
C) ATC 
D) TAG 
E) UAG

Question 15

The molecule that carries amino acids during translation is ____.

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

How many codons exist in the genetic code?

Accepted Answer

A) 3 
B) 9 
C) 16 
D) 64 
E) 128 
A) 3 
B) 9 
C) 16 
D) 64 
E) 128

Question 17

A set of DNA fragments unique to each person is a ____.

Accepted Answer

A) DNA genome 
B) human genome 
C) DNA profile 
D) gene sequence 
E) DNA fragment 
A) DNA genome 
B) human genome 
C) DNA profile 
D) gene sequence 
E) DNA fragment

Question 18

During transcription, which molecule is made?

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 19

Splicing of mRNA removes which of the following?

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 20

Which genetic disorder is an inborn error of metabolism?

Accepted Answer

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

Exam 21: DNA Genes and Biotechnology

If a DNA triplet is ATC, what is the corresponding mRNA codon?

Because DNA replication takes place at an extremely rapid rate, a cell must repair breaks in a strand of DNA up to approximately how many times in an hour?

In DNA the amount of adenine equals the amount of ____.

Recombinant DNA is associated with all of the following EXCEPT ____.

Sickle-cell anemia is caused by ____.

Splicing of mRNA ____.

Each codon consists of how many bases?

The relationship between DNA and RNA is ____.

The fragments of chromosomes split by restriction enzymes ____.

Making mRNA from DNA is known as ____.

Each round of reactions in PCR ____ the number of DNA molecules from the target site.

Unfortunately, several of the children who were genetically treated for SCID-X1 have since developed ____.

If three consecutive bases in DNA are ATC, what is the corresponding codon?

The molecule that carries amino acids during translation is ____.

How many codons exist in the genetic code?

A set of DNA fragments unique to each person is a ____.

During transcription, which molecule is made?

Splicing of mRNA removes which of the following?

Which genetic disorder is an inborn error of metabolism?

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

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Blood

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Introduction to Genetics

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Genes and Disease: Cancer

Principles of Evolution

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