Question 1

Mutations in an intron region of a gene are most likely to _____.​

Accepted Answer

A)  ​prevent mRNA from being synthesized 
B)  ​trap mRNA inside the nucleus 
C)  ​prevent mRNA from being recognized by the ribosome 
D)  ​result in no changes in the amino acid sequence 
E)  ​alter the amino acid sequence 
A)  ​prevent mRNA from being synthesized 
B)  ​trap mRNA inside the nucleus 
C)  ​prevent mRNA from being recognized by the ribosome 
D)  ​result in no changes in the amino acid sequence 
E)  ​alter the amino acid sequence

Question 2

In a sickled red blood cell, what do the hemoglobin molecules do?​

Accepted Answer

A)  ​repel each other 
B)  ​stick together 
C)  ​fracture and release their contents into the cytoplasm 
D)  ​create holes in the cell membrane 
E)  ​hold less tightly onto oxygen molecules 
A)  ​repel each other 
B)  ​stick together 
C)  ​fracture and release their contents into the cytoplasm 
D)  ​create holes in the cell membrane 
E)  ​hold less tightly onto oxygen molecules

Question 3

​Match each term with the most appropriate description.
-​occurs when stop codons are read
A)​anticodon
B)​rRNA
C)​codon
D)​ribosome
E)​genetic code
F)​translation termination
G)​messenger RNA
H)​promoters
I)​transcription
J)​translation

Accepted Answer

The answer of ​Match each term with the most appropriate...

Question 4

How many different codons are part of the genetic code?​

Accepted Answer

A)  ​4 
B)  ​16 
C)  ​32 
D)  ​64 
E)  ​128 
A)  ​4 
B)  ​16 
C)  ​32 
D)  ​64 
E)  ​128

Question 5

Identify the type of mutation associated with the following questions and statements. Some answers may be used more than once.
-What type of mutation occurred if the sequence GGACTCCTCCTCAGA is changed to GGACTCCTTCCTCAGA?
A)deletion only
B)insertion only
C)base-pair substitution
D)frameshift mutation

Accepted Answer

The answer of Identify the type of mutation associated with...

Question 6

Frameshift mutations may involve _____.​

Accepted Answer

A)  ​the substitution of nucleotides 
B)  ​the substitution of codons 
C)  ​the substitution of amino acids 
D)  ​the insertion of one to several base pairs 
E)  ​mutations in the promoter 
A)  ​the substitution of nucleotides 
B)  ​the substitution of codons 
C)  ​the substitution of amino acids 
D)  ​the insertion of one to several base pairs 
E)  ​mutations in the promoter

Question 7

The type of RNA that carries protein-building information is called _____.​

Accepted Answer

A)  ​ribosomal RNA 
B)  ​transfer RNA 
C)  ​messenger RNA 
D)  ​reader RNA 
E)  ​translator RNA 
A)  ​ribosomal RNA 
B)  ​transfer RNA 
C)  ​messenger RNA 
D)  ​reader RNA 
E)  ​translator RNA

Question 8

Which of the following adds RNA nucleotides, one at a time, during transcription?​

Accepted Answer

A)  ​RNA polymerase 
B)  ​DNA polymerase 
C)  ​RNA nuclease 
D)  ​transfer RNA 
E)  ​ribosomal RNA 
A)  ​RNA polymerase 
B)  ​DNA polymerase 
C)  ​RNA nuclease 
D)  ​transfer RNA 
E)  ​ribosomal RNA

Question 9

Most of the energy required to form the peptide bonds during elongation comes from _____.

Accepted Answer

A)  ATP 
B)  CTP 
C)  GTP 
D)  TTP 
E)  whichever nucleotide is at the front of the codon 
A)  ATP 
B)  CTP 
C)  GTP 
D)  TTP 
E)  whichever nucleotide is at the front of the codon

Question 10

What is the maximum number of different tRNAs in a eukaryotic cell?

Accepted Answer

A)  3 
B)  20 
C)  60 
D)  61 
E)  64 
A)  3 
B)  20 
C)  60 
D)  61 
E)  64

Question 11

Amino acids are carried to ribosomes by____ RNA.

Accepted Answer

A)  template 
B)  messenger 
C)  transfer 
D)  ribosomal 
E)  retriever 
A)  template 
B)  messenger 
C)  transfer 
D)  ribosomal 
E)  retriever

Question 12

A gene is a DNA sequence that codes for a protein or _____ product.

Accepted Answer

A)  RNA 
B)  DNA 
C)  ribosome 
D)  lipid 
E)  exon 
A)  RNA 
B)  DNA 
C)  ribosome 
D)  lipid 
E)  exon

Question 13

Homeotic genes encode which type of protein?​

Accepted Answer

A)  ​transcription factors 
B)  ​ribosomal proteins 
C)  ​channel proteins 
D)  ​membrane-associated proteins 
E)  ​DNA methylases 
A)  ​transcription factors 
B)  ​ribosomal proteins 
C)  ​channel proteins 
D)  ​membrane-associated proteins 
E)  ​DNA methylases

Question 14

A ribosome contains _____.​

Accepted Answer

A)  ​RNA only 
B)  ​DNA only 
C)  ​proteins only 
D)  ​RNA and proteins 
E)  ​RNA, DNA, and proteins 
A)  ​RNA only 
B)  ​DNA only 
C)  ​proteins only 
D)  ​RNA and proteins 
E)  ​RNA, DNA, and proteins

Question 15

Matching
​Match each term with the most appropriate description.
-​complex with proteins to form ribosomes
A)​anticodon
B)​rRNA
C)​codon
D)​ribosome
E)​genetic code
F)​translation termination
G)​messenger RNA
H)​promoters
I)​transcription
J)​translation

Accepted Answer

The answer of Matching
​Match each term with the most appropriate...

Question 16

​Match each term with the most appropriate description.
-​all of the mRNA codons
A)​anticodon
B)​rRNA
C)​codon
D)​ribosome
E)​genetic code
F)​translation termination
G)​messenger RNA
H)​promoters
I)​transcription
J)​translation

Accepted Answer

The answer of ​Match each term with the most appropriate...

Exam 8: Gene Expression and Control

Mutations in an intron region of a gene are most likely to _____.​

In a sickled red blood cell, what do the hemoglobin molecules do?​

​Match each term with the most appropriate description. -​occurs when stop codons are read A)​anticodon B)​rRNA C)​codon D)​ribosome E)​genetic code F)​translation termination G)​messenger RNA H)​promoters I)​transcription J)​translation

How many different codons are part of the genetic code?​

Frameshift mutations may involve _____.​

The type of RNA that carries protein-building information is called _____.​

Which of the following adds RNA nucleotides, one at a time, during transcription?​

Most of the energy required to form the peptide bonds during elongation comes from _____.

What is the maximum number of different tRNAs in a eukaryotic cell?

Amino acids are carried to ribosomes by____ RNA.

A gene is a DNA sequence that codes for a protein or _____ product.

Homeotic genes encode which type of protein?​

A ribosome contains _____.​

Matching ​Match each term with the most appropriate description. -​complex with proteins to form ribosomes A)​anticodon B)​rRNA C)​codon D)​ribosome E)​genetic code F)​translation termination G)​messenger RNA H)​promoters I)​transcription J)​translation

​Match each term with the most appropriate description. -​all of the mRNA codons A)​anticodon B)​rRNA C)​codon D)​ribosome E)​genetic code F)​translation termination G)​messenger RNA H)​promoters I)​transcription J)​translation

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Dna Structure and Function

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

Mutations in an intron region of a gene are most likely to _____.

In a sickled red blood cell, what do the hemoglobin molecules do?

Match each term with the most appropriate description. -occurs when stop codons are read A)anticodon B)rRNA C)codon D)ribosome E)genetic code F)translation termination G)messenger RNA H)promoters I)transcription J)translation

How many different codons are part of the genetic code?

Frameshift mutations may involve _____.

The type of RNA that carries protein-building information is called _____.

Which of the following adds RNA nucleotides, one at a time, during transcription?

Homeotic genes encode which type of protein?

A ribosome contains _____.

Matching Match each term with the most appropriate description. -complex with proteins to form ribosomes A)anticodon B)rRNA C)codon D)ribosome E)genetic code F)translation termination G)messenger RNA H)promoters I)transcription J)translation

Match each term with the most appropriate description. -all of the mRNA codons A)anticodon B)rRNA C)codon D)ribosome E)genetic code F)translation termination G)messenger RNA H)promoters I)transcription J)translation