Question 1

Which of thfollowing items arNOT likely to contain castor oil?

Accepted Answer

A) cosmetics 
B) plastics 
C) steel 
D) paints 
E) none of these 
A) cosmetics 
B) plastics 
C) steel 
D) paints 
E) none of these C

Question 2

In a prokaryotic cell,

Accepted Answer

A) transcription and translation may occur simultaneously. 
B) transcription occurs in the nucleus while translation takes place in the cytoplasm. 
C) translation occurs in the nucleus while transcription takes place in the cytoplasm. 
D) RNA polymerase catalyzes protein synthesis. 
E) ribosomes interact with the endoplasmic reticulum first before initiating translation. 
A) transcription and translation may occur simultaneously. 
B) transcription occurs in the nucleus while translation takes place in the cytoplasm. 
C) translation occurs in the nucleus while transcription takes place in the cytoplasm. 
D) RNA polymerase catalyzes protein synthesis. 
E) ribosomes interact with the endoplasmic reticulum first before initiating translation. A

Question 3

Which of thfollowing coulNOT ban RNA transcript?

Accepted Answer

A) AUGCGU 
B) ATGCGT 
C) UACGCA 
D) UAGCGU 
E) GCGUUU 
A) AUGCGU 
B) ATGCGT 
C) UACGCA 
D) UAGCGU 
E) GCGUUU B

Question 4

Examine the following figure and answer questions 
  
-Stran# 2 represents

Accepted Answer

A) the coding DNA strand. 
B) the transcript. 
C) the non-coding DNA strand. 
D) the transferred strand. 
E) any of these. 
A) the coding DNA strand. 
B) the transcript. 
C) the non-coding DNA strand. 
D) the transferred strand. 
E) any of these.

Question 5

Examine the following figure and answer questions 
  
-Thstart codon of RNA is

Accepted Answer

A) TAC. 
B) ATA. 
C) UAU. 
D) GUG. 
E) AUG. 
A) TAC. 
B) ATA. 
C) UAU. 
D) GUG. 
E) AUG.

Question 6

Which of thfollowing statements artruof RNA molecules?

Accepted Answer

A) RNA are single-stranded molecules. 
B) They contain uracil in place of guanine. 
C) The cell contains different kinds of RNA molecules. 
D) RNA are single-stranded molecules that are found in different kinds in the cell. 
E) All of these are true. 
A) RNA are single-stranded molecules. 
B) They contain uracil in place of guanine. 
C) The cell contains different kinds of RNA molecules. 
D) RNA are single-stranded molecules that are found in different kinds in the cell. 
E) All of these are true.

Question 7

If an mRNA carries CUCGAU as a sequence, what woulbthsequencof thnon-coding stranof DNA?

Accepted Answer

A) CTCGAT 
B) GUGCUA 
C) GTGCAT 
D) GAGCTA 
E) none of these 
A) CTCGAT 
B) GUGCUA 
C) GTGCAT 
D) GAGCTA 
E) none of these

Question 8

Which of thfollowing mutations always lead(s) to a shift of thmRNA's reading frame?

Accepted Answer

A) deletion and insertion 
B) deletion and substitution 
C) insertion and substitution 
D) substitution 
E) insertion 
A) deletion and insertion 
B) deletion and substitution 
C) insertion and substitution 
D) substitution 
E) insertion

Question 9

During elongation, ribosomes catalyzformation of __________ between thamino acianthgrowing polypeptide.

Accepted Answer

A) a hydrogen bond 
B) a peptide bond 
C) a polar covalent bond 
D) a non-polar covalent bond 
E) a sulfur bond 
A) a hydrogen bond 
B) a peptide bond 
C) a polar covalent bond 
D) a non-polar covalent bond 
E) a sulfur bond

Question 10

A genmutation

Accepted Answer

A) is a change in the nucleotide sequence of DNA. 
B) may be caused by environmental agents. 
C) may arise spontaneously. 
D) can occur in any organism. 
E) is true of all of these. 
A) is a change in the nucleotide sequence of DNA. 
B) may be caused by environmental agents. 
C) may arise spontaneously. 
D) can occur in any organism. 
E) is true of all of these.

Question 11

If thDNA coding sequencwerATG-CGT, thmRNA codons woulbe

Accepted Answer

A) AUG-CGU. 
B) ATG-CGT. 
C) UAC-GCA. 
D) UAG-CGU. 
E) none of these. 
A) AUG-CGU. 
B) ATG-CGT. 
C) UAC-GCA. 
D) UAG-CGU. 
E) none of these.

Question 12

Insertion mutations can bcauseby which of thfollowing?

Accepted Answer

A) transposable elements 
B) transcription elements 
C) transduction elements 
D) translation elements 
E) any of these 
A) transposable elements 
B) transcription elements 
C) transduction elements 
D) translation elements 
E) any of these

Question 13

Frameshift mutations may involve

Accepted Answer

A) substitution of nucleotides. 
B) substitution of codons. 
C) substitution of amino acids. 
D) insertion or deletion of one to several base pairs. 
E) all of these. 
A) substitution of nucleotides. 
B) substitution of codons. 
C) substitution of amino acids. 
D) insertion or deletion of one to several base pairs. 
E) all of these.

Question 14

In which of thfollowing regions of an animal cell woultranslation occur?
I.nucleus
II.cytoplasm
III.lysosome

Accepted Answer

A) I and II 
B) II and III 
C) I only 
D) II only 
E) III only 
A) I and II 
B) II and III 
C) I only 
D) II only 
E) III only

Question 15

Transcription

Accepted Answer

A) involves both strands of DNA as templates. 
B) uses the enzyme DNA polymerase. 
C) results in a double-stranded end product. 
D) produces three different types of RNA molecules. 
E) is true of all of these. 
A) involves both strands of DNA as templates. 
B) uses the enzyme DNA polymerase. 
C) results in a double-stranded end product. 
D) produces three different types of RNA molecules. 
E) is true of all of these.

Question 16

Four of thfivanswers listebelow arrelateto translation.Select thEXCEPTION.

Accepted Answer

A) RNA polymerase 
B) mRNA 
C) tRNA 
D) ribosome 
E) amino acid 
A) RNA polymerase 
B) mRNA 
C) tRNA 
D) ribosome 
E) amino acid

Question 17

Thtypof RNA that carries protein-building information is called

Accepted Answer

A) ribosomal RNA. 
B) transfer RNA. 
C) messenger RNA. 
D) carrier RNA. 
E) transporter RNA. 
A) ribosomal RNA. 
B) transfer RNA. 
C) messenger RNA. 
D) carrier RNA. 
E) transporter RNA.

Question 18

Which of thfollowing items arlikely to contain castor oil?

Accepted Answer

A) cosmetics 
B) plastics 
C) polishes 
D) paints 
E) all of these 
A) cosmetics 
B) plastics 
C) polishes 
D) paints 
E) all of these

Question 19

A polysomis

Accepted Answer

A) one of the units of a ribosome. 
B) the nuclear organelle that synthesizes RNA. 
C) an organelle that functions similarly to a ribosome during meiosis. 
D) the two units of a ribosome considered together. 
E) an mRNA molecule with several ribosomes attached. 
A) one of the units of a ribosome. 
B) the nuclear organelle that synthesizes RNA. 
C) an organelle that functions similarly to a ribosome during meiosis. 
D) the two units of a ribosome considered together. 
E) an mRNA molecule with several ribosomes attached.

Question 20

Which event may occur in all viruses, prokaryotes, aneukaryotes?

Accepted Answer

A) duplication 
B) aneuploidy 
C) translocation 
D) mutation 
E) all of these may occur 
A) duplication 
B) aneuploidy 
C) translocation 
D) mutation 
E) all of these may occur

Exam 7: Gene Expression and Control

Which of thfollowing items arNOT likely to contain castor oil?

In a prokaryotic cell,

Which of thfollowing coulNOT ban RNA transcript?

Examine the following figure and answer questions -Stran# 2 represents

Examine the following figure and answer questions -Thstart codon of RNA is

Which of thfollowing statements artruof RNA molecules?

If an mRNA carries CUCGAU as a sequence, what woulbthsequencof thnon-coding stranof DNA?

Which of thfollowing mutations always lead(s) to a shift of thmRNA's reading frame?

During elongation, ribosomes catalyzformation of __________ between thamino acianthgrowing polypeptide.

A genmutation

If thDNA coding sequencwerATG-CGT, thmRNA codons woulbe

Insertion mutations can bcauseby which of thfollowing?

Frameshift mutations may involve

In which of thfollowing regions of an animal cell woultranslation occur? I.nucleus II.cytoplasm III.lysosome

Transcription

Four of thfivanswers listebelow arrelateto translation.Select thEXCEPTION.

Thtypof RNA that carries protein-building information is called

Which of thfollowing items arlikely to contain castor oil?

A polysomis

Which event may occur in all viruses, prokaryotes, aneukaryotes?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolutionunit

Population Ecology

Communities and Ecosystems

The Biosphere and Human Eff Ects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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