Biotechnology Previous Paper With Solutions

Please give me question paper for the GATE biotechnology entrance examination ??

Here I am giving you question paper for the GATE biotechnology entrance examination in PDF files attached with it so you can get it easily..

Some questions are given below :
Q.1 In mismatch correction repair, the parental DNA strand is distinguished from the daughter strand by
(A) acetylation (B) phosphorylation (C) methylation (D) glycosylation
Q.2 The basis for blue-white screening with pUC vectors is
(A) intraallelic complementation (B) intergenic complementation
(C) intragenic suppression (D) extragenic suppression

Q.3 Idiotypic determinants of an antibody are associated with the
(A) constant region of the heavy chains (B) constant region of the light chains
(C) variable region (D) constant regions of light and heavy chains

Q.4 Identification of blood groups involves
(A) precipitation (B) neutralization
(C) opsonization (D) agglutination

Q.5 B-lymphocytes originate from the bone marrow whereas T-lymphocytes originate from
(A) thymus (B) bone marrow (C) spleen (D) liver

Q.6 A humanized antibody is one in which the
(A) heavy and light chains are from human
(B) heavy chain is from human and light chain is from mouse
(C) light chain is from human and heavy chain is from mouse
(D) CDRs are from mouse, and the rest is from human

Q.7 Dimethyl sulfoxide (DMSO) is used as a cryopreservant for mammalian cell cultures because
(A) it is an organic solvent
(B) it easily penetrates cells
(C) it protects cells by preventing crystallization of water
(D) it is also utilized as a nutrient

Q.8 Nude mice refers to
(A) mice without skin (B) mice without thymus
(C) knockout mice (D) transgenic mice

Q.9 Heat inactivation of serum is done to inactivate
(A) prions (B) mycoplasma (C) complement (D) pathogenic bacteria

Q.10 Choose the correct signal transduction pathway.
(A) Hormone → 7 TM receptor → G protein → cAMP → PKA
(B) Hormone → G protein → 7 TM receptor → cAMP → PKA
(C) Hormone → 7 TM receptor → G protein → PKA → cAMP
(D) Hormone → 7 TM receptor → cAMP → G protein → PKA

Q.11 A protein is phosphorylated at a serine residue. A phosphomimic mutant of the protein can be
generated by substituting that serine with
(A) glycine (B) alanine (C) aspartate (D) threonine

Q.12 A truncated polypeptide is synthesized due to a nonsense mutation. Where would you introduce
another mutation to obtain a full-length polypeptide?
(A) Ribosomal protein gene (B) Transfer RNA gene
(C) DNA repair gene (D) Ribosomal RNA gene

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GATE Biotechnology paper.pdf (266.3 KB, 44 views)

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Would you like to provide here GATE Biotechnology exam solved question paper???

You need GATE Biotechnology exam solved question paper, here I am giving:

A hospitable DNA polymer that can carry out both reverse transcription reaction and polymerization has been isolated from
(A) Thermonuclear moralists (B) The rrnus aqualicus
(C) Interrogator Trimurti (D) Ther,nus rhermophilus

When present in tissue culture medium, gibberellin
(A) helps to break dormancy of buds and bulbs
(B) promotes dormancy dcvcloprnent in buds and bulbs
(C) is regarded as plant growth inhibitor
(D) prevents normal recognition of auxin molecule

To promote attachnicnt and spreading of anchorage-dependent animal cells, the surface of the culture vessel needs to be coated with
(A) trypsin (B) collagen (C) pronase (D) polyglycol

For amplification of GC rich sequences by polymerase chain reaction, identify the reagent that binds and stabilizes AT sequences and destabilizes GC regions.
(A) Tetramethyl ammoniuni chloride
(B) Betaine
(C) 7-deaza-2 -deoxyguanosine triphosphate
(D) Sodium dodecyl sulphate

GATE BT question paper





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