Biochemistry MCQs

Page No. 17

Restriction endonuclease cleaves______________?


a Double stranded DNA


bSIngle stranded DNA


cSIngle stranded RNA


dPolypeptide



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


aConjugation


bTransduction


cTranslocation


dTranscription


View Answer Transcription

Unwinding of DNA is done by____________?


a DNAse


bTopo isomerase


cLigase


d Reverse transcriptase


View Answer Topo isomerase

Nonsense codons bring about__________________?


aElongation of polypeptide chain


bPre-translational modification of protein


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


dCell walls



Kinase requires_______________?


aMN++


bCu++


cMg++


dInorganic phosphate


View Answer Mg++

Highest binding of iron in plasma is seen with___________?


aTransferrin


bFerritin


cHemoglobin


dCeruloplasmin


View Answer Transferrin

The normal value of serum potassium level is____________?


a2.8-3.8 meq/L


b3.8-5 meq/L


c5-5.8 meq/L


d6-7.2 meq/L


View Answer 3.8-5 meq/L

Normal serum calcium level is_______________?


a4-6 mg/dl


b9-11 mg/dl


c19-21 mg/dl


d20-30 mg/dl


View Answer 9-11 mg/dl

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