What is the correct sequence in translation?a tRNA attaches to start codon, ribosome attaches to mRNA in P site, new tRNA enters on A site, peptide chain moves to old tRNA in P site, old tRNA moves to E and new tRNA to P.b tRNA attaches to start codon, ribosome attaches to mRNA in P site, new tRNA enters on A site, peptide chain moves to new tRNA, old tRNA moves to E and new tRNA to P.c tRNA attaches to start codon, ribosome attaches to mRNA in A site, new tRNA enters on P site, peptide chain moves to new tRNA, old tRNA moves to E and new tRNA to A.d tRNA attaches continuously to mRNA without the need of a ribosome.Proteins are:a the direct translation of a single geneb in most cases, the results of post-translation controlc first transcribed from DNA by an operond transcription factorsWhich of the following statements is false?a In the lytic cycle, new phage are produced and released into the environment.b In the lysogenic cycle, phage DNA is incorporated into the host genome.c An environmental stressor can cause the phage to initiate the lysogenic cycle.d Cell lysis only occurs in the lytic cycle.Which of the following transfer RNA binding sites is found on the ribosome?a A, P, Eb A, G, T,c A, C, Ud U, U, GOperons are:a Present in eukaryotic cellsb In each chromosome of all cellsc present in prokaryiotic cellsd a way to control translation from mRNA to proteinsWhich of the following statements about virus structure is true?a All viruses are encased in a viral membrane.b The capsomere is made up of small protein subunits called capsids.c DNA is the genetic material in all viruses.d Glycoproteins help the virus attach to the host cell.Prokaryotic cells lack a nucleus. Therefore, the genes in prokaryotic cells are: (choose the most complete answer).a all expressed, all of the timeb transcribed and translated almost simultaneouslyc transcriptionally controlled because translation begins before transcription ends.d b and c are both trueHow many subunits does the ribosome contain?a One.b Two.c Three.d Four.Which of the following statements about virus structure is true?a All viruses are encased in a viral membrane.b The capsomere is made up of small protein subunits called capsids.c DNA is the genetic material in all viruses.d Glycoproteins help the virus attach to the host cell.Look at sub-figure A. What is the structure in black made of?a Glycoproteins.b RNAc Capsomeres.d DNA.Which type of RNA carries the code for the sequence of amino acids in a protein?a Messenger RNA.b Ribosomal RNA.c Transfer RNA.d Courier RNA.Look at sub-figure C. What does the image correspond to?a This is a tRNAb This is an mRNAc This is a primary (raw) transcript.d This is DNA.The process of converting DNA to RNA is called:a Transcription.b Translation.c Transduction.d Induction.Which one is exclusive of transcription in eukaryots?a RNA polymeraseb Transcription factorsc Initiation, elongation, terminationd topisomerasesIf this is an operon then, which statement is correct?a The boxes with numbers are intronsb The boxes with numbers are exonsc The region next to the promotor is called the operatord This belongs to an eukaryotic organism.What is RNA splicing?a When a mRNA is broken into piecesb When mRNA is transformed to DNA with the help of reverse transcriptasec When mRNA contains different sets of exonsd When introns are in the final mRNAWhat will result from the binding of a transcription factor to an enhancer region?a decreased transcription of an adjacent geneb increased transcription of a distant genec alteration of the translation of an adjacent gened initiation of the recruitment of RNA polymeraseWhich of the following statements about virus structure is true?a They are hexagonalb They are composed of capsomeresc The reverse transcriptase is in all of themd They don't have glycoproteinsIf glucose is absent, but so is lactose, the lac operon will be _______.a activated.b repressed.c activated, but only partially,d mutated.Why can’t the bases sequence TGCCGAACTTGAA be translated directly?a There are too many bases for a codon.b This is a segment of DNA, not RNA.c This is a segment of RNA, not DNA.d This is a segment of mRNA.Which type of gene expression does not exist?a epigeneticb histone modificationc regulation by transcription factorsd electrical field stimulationWhat are epigenetic modifications?a the addition of reversible changes to histone proteins and DNAb the removal of nucleosomes from the DNAc the addition of more nucleosomes to the DNAd mutation of the DNA sequenceEach transfer RNA has a sequence complimentary to the codon known as the:a anticodonb retrocodonc negacodond nullcodonPost-translational control refers to:a regulation of gene expression after transcriptionb regulation of gene expression after translationc control of epigenetic activationd period between transcription and translation AJBlueRedCyanBlackB)vira!DNAmitosig

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Description: What is the correct sequence in translation?a tRNA attaches to start codon, ribosome attaches to mRNA in P site, new tRNA enters on A site, peptide chain moves to old tRNA in P site, old tRNA moves to E and new tRNA to P.b tRNA attaches to start codo

1. Translation is the process of synthesis of protein from a transcribed mRNA. Translation…

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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What is the correct sequence in translation?

a		tRNA attaches to start codon, ribosome attaches to mRNA in P site, new tRNA enters on A site, peptide chain moves to old tRNA in P site, old tRNA moves to E and new tRNA to P.
b		tRNA attaches to start codon, ribosome attaches to mRNA in P site, new tRNA enters on A site, peptide chain moves to new tRNA, old tRNA moves to E and new tRNA to P.
c		tRNA attaches to start codon, ribosome attaches to mRNA in A site, new tRNA enters on P site, peptide chain moves to new tRNA, old tRNA moves to E and new tRNA to A.
d		tRNA attaches continuously to mRNA without the need of a ribosome.

Proteins are:

a		the direct translation of a single gene
b		in most cases, the results of post-translation control
c		first transcribed from DNA by an operon
d		transcription factors

Which of the following statements is false?

a		In the lytic cycle, new phage are produced and released into the environment.
b		In the lysogenic cycle, phage DNA is incorporated into the host genome.
c		An environmental stressor can cause the phage to initiate the lysogenic cycle.
d		Cell lysis only occurs in the lytic cycle.

Which of the following transfer RNA binding sites is found on the ribosome?

a		A, P, E
b		A, G, T,
c		A, C, U
d		U, U, G

Operons are:

a		Present in eukaryotic cells
b		In each chromosome of all cells
c		present in prokaryiotic cells
d		a way to control translation from mRNA to proteins

Which of the following statements about virus structure is true?

a		All viruses are encased in a viral membrane.
b		The capsomere is made up of small protein subunits called capsids.
c		DNA is the genetic material in all viruses.
d		Glycoproteins help the virus attach to the host cell.

Prokaryotic cells lack a nucleus. Therefore, the genes in prokaryotic cells are: (choose the most complete answer).

a		all expressed, all of the time
b		transcribed and translated almost simultaneously
c		transcriptionally controlled because translation begins before transcription ends.
d		b and c are both true

How many subunits does the ribosome contain?

a		One.
b		Two.
c		Three.
d		Four.

Which of the following statements about virus structure is true?

a		All viruses are encased in a viral membrane.
b		The capsomere is made up of small protein subunits called capsids.
c		DNA is the genetic material in all viruses.
d		Glycoproteins help the virus attach to the host cell.

Look at sub-figure A. What is the structure in black made of?

a		Glycoproteins.
b		RNA
c		Capsomeres.
d		DNA.

Which type of RNA carries the code for the sequence of amino acids in a protein?

a		Messenger RNA.
b		Ribosomal RNA.
c		Transfer RNA.
d		Courier RNA.

Look at sub-figure C. What does the image correspond to?

a		This is a tRNA
b		This is an mRNA
c		This is a primary (raw) transcript.
d		This is DNA.

The process of converting DNA to RNA is called:

a		Transcription.
b		Translation.
c		Transduction.
d		Induction.

Which one is exclusive of transcription in eukaryots?

a		RNA polymerase
b		Transcription factors
c		Initiation, elongation, termination
d		topisomerases

If this is an operon then, which statement is correct?

a		The boxes with numbers are introns
b		The boxes with numbers are exons
c		The region next to the promotor is called the operator
d		This belongs to an eukaryotic organism.

What is RNA splicing?

a		When a mRNA is broken into pieces
b		When mRNA is transformed to DNA with the help of reverse transcriptase
c		When mRNA contains different sets of exons
d		When introns are in the final mRNA

What will result from the binding of a transcription factor to an enhancer region?

a		decreased transcription of an adjacent gene
b		increased transcription of a distant gene
c		alteration of the translation of an adjacent gene
d		initiation of the recruitment of RNA polymerase

Which of the following statements about virus structure is true?

a		They are hexagonal
b		They are composed of capsomeres
c		The reverse transcriptase is in all of them
d		They don't have glycoproteins

If glucose is absent, but so is lactose, the lac operon will be _______.

a		activated.
b		repressed.
c		activated, but only partially,
d		mutated.

Why can’t the bases sequence TGCCGAACTTGAA be translated directly?

a		There are too many bases for a codon.
b		This is a segment of DNA, not RNA.
c		This is a segment of RNA, not DNA.
d		This is a segment of mRNA.

Which type of gene expression does not exist?

a		epigenetic
b		histone modification
c		regulation by transcription factors
d		electrical field stimulation

What are epigenetic modifications?

a		the addition of reversible changes to histone proteins and DNA
b		the removal of nucleosomes from the DNA
c		the addition of more nucleosomes to the DNA
d		mutation of the DNA sequence

Each transfer RNA has a sequence complimentary to the codon known as the:

a		anticodon
b		retrocodon
c		negacodon
d		nullcodon

Post-translational control refers to:

a		regulation of gene expression after transcription
b		regulation of gene expression after translation
c		control of epigenetic activation
d		period between transcription and translation

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