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›Biochemistry

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Topic

Year

BiochemistryVitamins & Minerals

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Q9599. Antistress Vitamin is?

A.Vitamin B1

B.Vitamin B2

C.Vitamin B3

D.Vitamin B5

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NEET-PG

2016

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BiochemistryNucleotide Metabolism

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Q9600. True about Purine synthesis ?

A.Glutamine is the amino group donor for N9

B.PRPP synthetase is the rate limiting enzyme of purine synthesis

C.THFA is necessary for forming C6 of purine ring

D.GMP is the first nucleotide to be formed during purine synthesis

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BiochemistryProtein & Amino Acid

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Q9601. True about pyrimidine catabolism is ?

A.It is a source of uric acid

B.β aminoisobutyrate is generated

C.Unlike other catabolic pathways, it does not generate

D.Increased pyrimidine catabolism causes decreased synthesis of

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BiochemistryNucleotide & DNA Metabolism

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Q9603. All of the following are true about Nucleic Acid Sequence Based Amplification except ?

A.It is a specific amplification of RNA

B.It is a replacement for reverse transcriptase PCR

C.Denaturation is carried out at 94°C

D.It requires Reverse transcriptase.

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BiochemistryNucleotide & DNA Metabolism

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Q9604. The linkage which links individual nucleotides in a polynucleotide chain is -

A.p N- Glycosidic linkage

B.a N - glycosidic linkage

C.3'5' Phosphodiester linkage

D.5'3' Phosphodiester linkages

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BiochemistryMolecular Biology

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Q9610. Left handed helix is seen in -

A.B DNA

B.A DNA

C.Z DNA

D.F DNA

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BiochemistryNucleotide Metabolism

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Q9611. Aminoacyl tRNA gets attached to which site of ribosome?

A.P site of 40s ribosome

B.A site of 60s ribosome

C.A site of 40s ribosome

D.P site of 60s ribosome

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BiochemistryNucleotide Metabolism

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Q9612. Okazaki fragments are formed during ?

A.Transcription

B.Translation

C.DNA replication

D.None

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BiochemistryCarbohydrate Metabolism

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Q9614. Proteins are stored as ?

A.Structural proteins

B.Functional proteins

C.Fats

D.Lysosomal enzymes

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BiochemistryNucleotide & DNA Metabolism

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Q9616. True about tRNA ?

A.80% of total RNA

B.Contains 50-60 nucleotides

C.CCA sequence is transcribed

D.Longest RNA

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BiochemistryHeme & Porphyrin

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Q9620. LacY in Lac Operon codes for ?

A.B Galactosidase

B.Galactoside Permease

C.Thiogalactoside Transacetylase

D.Repressor

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BiochemistryProtein & Enzyme Metabolism

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Q9621. Ubiquitin Proteasome pathway is used for degradation of ?

A.Extracellular long lived proteins

B.Intracellular long lived proteins

C.Intracellular short lived proteins

D.Extracellular short lived proteins

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BiochemistryNucleotide Metabolism

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Q9622. Small RNAs are ?

A.Between 200 and 500 bps in length

B.Coded by small exons

C.A mode of regulation of gene expression

D.Always endogenously synthesised

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BiochemistryNucleotide Metabolism

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Q9623. All of the following are true about collagen structure except -

A.Collagen is secreted by fibroblasts as procollagen

B.Lysyl oxidase is dependent on Vitamin C

C.Hydroxylysine undergoes glycosylation

D.Glycine is the most abundant aminoacid of collagen

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BiochemistryProtein & Amino Acid Metabolism

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Q9624. The most abundant aminoacid of collagen is -

A.Glycine

B.Proline

C.Lysine

D.Tryptophan

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BiochemistryVitamins & Minerals

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Q9626. Heme synthesis requires

A.Ferrous iron

B.Glycine

C.Succhyl CoA

D.All

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BiochemistryProtein & Amino Acid

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Q9627. Heme is which porphyrin ?

A.Type I

B.Type II

C.Type III

D.Type IV

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BiochemistryLipid Metabolism

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Q9629. Genetically mediated VLDL overproduction is a feature of all except ?

A.Familial combined hyperlipidemia

B.Hypoapobetalipoproteinemia

C.Familial dyslipidemic hypertension

D.LDL subclass B

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BiochemistryVitamins & Minerals

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Q9637. Vitamin A deficiency leads to metaplasia of?

A.Squamous epithelium

B.Columnar epithelium

C.Both

D.None

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BiochemistryProtein & Amino Acid Metabolism

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Q9648. Vasodilatation following endothelial damage is due to ?

A.Histamine

B.IL-2

C.TGF-3

D.FGF

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