Biochemistry MCQs

Page No. 17

Restriction endonuclease cleaves______________?


a Double stranded DNA

✓


bSIngle stranded DNA

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cSIngle stranded RNA

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dPolypeptide

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Which of the following process in involved in conversion of DNA to RNA___________?


aConjugation

✖


bTransduction

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cTranslocation

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dTranscription

✓


View Answer Transcription

Unwinding of DNA is done by____________?


a DNAse

✖


bTopo isomerase

✓


cLigase

✖


d Reverse transcriptase

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View Answer Topo isomerase

Nonsense codons bring about__________________?


aElongation of polypeptide chain

✖


bPre-translational modification of protein

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cInitiation of protein synthesis

✖


dTermination of protein synthesis

✓



The initiation codon for protein synthesis is_____________?


aAUG

✓


bUAA

✖


cUUU

✖


dUAG

✖


View Answer AUG

Mutations are due to changes in_________________?


aDNA nucleotide sequence

✓


bRNA nucleotide sequence

✖


cAmino acid sequence of ribonuclease

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dCell walls

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Kinase requires_______________?


aMN++

✖


bCu++

✖


cMg++

✓


dInorganic phosphate

✖


View Answer Mg++

Highest binding of iron in plasma is seen with___________?


aTransferrin

✓


bFerritin

✖


cHemoglobin

✖


dCeruloplasmin

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View Answer Transferrin

The normal value of serum potassium level is____________?


a2.8-3.8 meq/L

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b3.8-5 meq/L

✓


c5-5.8 meq/L

✖


d6-7.2 meq/L

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View Answer 3.8-5 meq/L

Normal serum calcium level is_______________?


a4-6 mg/dl

✖


b9-11 mg/dl

✓


c19-21 mg/dl

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d20-30 mg/dl

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View Answer 9-11 mg/dl

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