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Old April 29th, 2014, 12:54 PM
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Default Re: IIT-JAM last years question papers

This is the IIT-JAM last years question papers of biotechnology:

Which one of the following is TRUE regarding organization of human chromosomes? It is
made up of
(A) histones that are acidic proteins.
(B) extra-chromosomal circular DNA.
(C) chromatin that consists of DNA and basic proteins.
Q.2
(D) non-chromosomal DNA.

The melting point of unsaturated fatty acid
(A) is not related to the number of double bonds.
(B) increases with increase in the number of double bonds.
(C) is higher than that of its corresponding saturated fatty acid.

The most abundant immunoglobulin in human blood is
(A) IgM. (B) IgA. (C) IgD. (D) IgG.
The process of purification and recovery of a product in biotechnology is known as
(A) upstream processing. (B) downstream processing.
(C) incubation. (D) formulation.

If the velocity of an enzyme catalyzed reaction is 60% of vmax , then the ratio of substrate
concentration [S] to Michaelis-Menton constant KM is

(A) 1 (B) 1.5 (C) 2 (D) 4

Which one of the following is TRUE regarding organization of human chromosomes? It is
made up of
(A) histones that are acidic proteins.
(B) extra-chromosomal circular DNA.
(C) chromatin that consists of DNA and basic proteins.
(D) non-chromosomal DNA.

The melting point of unsaturated fatty acid
(A) is not related to the number of double bonds.
(B) increases with increase in the number of double bonds.
(C) is higher than that of its corresponding saturated fatty acid.
(D) decreases with increase in the number of double bonds.

Match the hormones in Group I with the metabolic processes in Group II

Group I Group II
P. Progesterone 1. Increases gluconeogenesis in liver
Q. Glucagon 2. Implantation of fertilized ovum
R. Insulin 3. Stimulates spermatogenesis process
S. Androgen 4. Stimulates glucose uptake and storage
(A) P-2, Q-1, R-4, S-3 (B) P-3, Q-2, R-1, S-4
(C) P-1, Q-4, R-2, S-3 (D) P-1, Q-2, R-4, S-3

The most abundant immunoglobulin in human blood is
(A) IgM. (B) IgA. (C) IgD. (D) IgG.

The process of purification and recovery of a product in biotechnology is known as
(A) upstream processing. (B) downstream processing.
(C) incubation. (D) formulation.

If the velocity of an enzyme catalyzed reaction is 60% of vmax , then the ratio of substrate
concentration [S] to Michaelis-Menton constant KM is
(A) 1 (B) 1.5 (C) 2 (D) 4

In a DNA replication experiment, 1 μg of 15N DNA is allowed to replicate till two generations
with 14N DNA. The amount (in μg) of 14N DNA formed during the second replication process
is
(A) 1 (B) 2 (C) 3 (D) 4

Transport activities in cell membranes are carried by ____________; whereas fluidity of
membranes is maintained by ____________.
(A) lipids; proteins
(B) proteins; nucleic acids
(C) lipids; nucleic acids
(D) proteins; lipids

Nodules of leguminous plants are a good source for the isolation of bacteria capable of
(A) nitrogen fixation. (B) carbon fixation.
(C) cellulase production. (D) amylase production.

Which of the following statements regarding techniques and their applications is NOT correct?
(A) Recombinant DNA Technology: cloning genes and expression of proteins.
(B) Enzyme Linked Immuno Sorbent Assay: recognize antigen and antibody interactions.
(C) Polymerase Chain Reaction: amplify specific DNA sequences.
(D) Western Blot: detect DNA in given samples.

Addition of casein to solid media and picking up bacterial colonies that form clear zone is
termed as
(A) differential enrichment. (B) streaking.
(C) serial dilution. (D) selective enrichment.

Leishmaniasis is transmitted by
(A) sand fly. (B) tsetse fly.
(C) rodent fly. (D) mosquitoes.

The binding of oxygen to hemoglobin is affected by
(A) hemoglobin concentration. (B) partial pressure of oxygen.
(C) bicarbonate concentration. (D) 2,3-biphosphoglyceric acid.

The Human Genome Project was aimed for
(A) DNA sequencing and DNA mapping.
(B) protein and DNA sequencing.
(C) protein sequencing and DNA mapping.
(D) RNA sequencing and genome database.

In photosynthesis, the light energy is used to
(A) generate low energy electrons.
(B) produce ATP and NADPH.
(C) generate chlorophyll.
(D) form water from oxygen.

In gram staining of gram negative bacteria, the crystal violet-iodine complex formed will be
washed away after addition of
(A) safranin solution. (B) ethyl acetate. (C) water. (D) alcohol.

The oxidation of glycolate to glyoxylate during photorespiration occurs in
(A) bundle sheath cells. (B) mesophyll cells.
(C) mesenchymal cells. (D) parenchymal cells.

In higher plants, the light harvesting molecules are
(A) vitamin D and cytochrome C.
(B) cytochrome C and cholorophyll.
(C) anthocyanin and carotenoid.
(D) chlorophyll and carotenoid.

Match the cell organelles in Group I with their functions listed in Group II

Group I Group II
P. Peroxisome 1. storage of starch granules
Q. Mitochondria 2. detoxification
R. Ribosome 3. proton gradient formation
S. Leucoplast 4. protein synthesis
(A) P-3, Q-2, R-1, S-4 (B) P-2, Q-4, R-3, S-1
(C) P-2, Q-3, R-4, S-1 (D) P-1, Q-3, R-4, S-2

The effect of hypotonic solution on a plant cell and red blood cell are, respectively,
(A) turgid and burst.
(B) shrink and burst.
(C) turgid and shrink.
(D) plasmolysed and burst.

Which one of the following statements is NOT correct for the classification of carbohydrates?
(A) Dihydroxyacetone and glyceraldehyde are trioses.
(B) Galactose and glucose are hexoses.
(C) Mannose and fructose are pentoses.
(D) Erythrose and threose are tetroses.

The last stage of spermatozoa formation in spermatogenesis is
(A) second meiotic division. (B) first meiotic division.
(C) mitosis. (D) differentiation.

In plant tissue culture, differentiation of callus to root requires
(A) high auxin and low cytokinin. (B) low auxin and high cytokinin.
(C) low auxin and low cytokinin. (D) high auxin and high cytokinin.

Regenerative medicine aims at
(A) discovering small molecules. (B) generating therapeutic proteins.
(C) growing tissues and organs. (D) identifying genetic mutations.

Which of the following is NOT required in a Polymerase Chain Reaction?
(A) DNA template
(B) Mg++ ion
(C) Primers
(D) Restriction enzymes

Which one of the following processes allows introduction of gene of interest to a target site in
genome?
(A) Somatic embryogenesis
(B) Organogenesis
(C) Gene cloning
(D) Southern hybridization

Based on the dissociation constant Kd, the protein - ligand pair that has the strongest interaction
is
(A) insulin and insulin receptor (Kd = 1 × 10−10).
(B) avidin and biotin (Kd = 1 × 10−15).
(C) HIV surface protein and anti-HIV IgG (Kd = 4 × 10−10).
(D) calmodulin and calcium (Kd = 3 × 10−6).

In genetic code, the codon degeneracy occurs at _________________ position(s).
(A) first (B) second (C) third (D) first and third

In pea plants, green pod color is dominant over yellow pod color. 1000 seeds taken from a pea
plant germinated to produce 760 green pod plants and 240 yellow pod plants. The parental
genotype and phenotype of the seed plants are
(A) heterozygous and yellow. (B) homozygous and green.
(C) heterozygous and green. (D) homozygous and yellow.

Which of the following is FALSE for DNA?
(A) DNA strands do not contain Uracil.
(B) Two strands of DNA associate in parallel arrangement.
(C) Orientation of one strand is 3´ to 5´ and other strand is 5´ to 3´.
(D) Ability of nucleotide in two strands to form specific base pairs is due to hydrogen bonds.

In 2009, the swine flu outbreak was _______________ in nature.
(A) sporadic (B) pandemic (C) chronic (D) endemic

Rests of the questions are in the attachment, please click on it……………
Attached Files Available for Download
File Type: pdf IIT-JAM last years question papers of biotechnology.pdf (148.4 KB, 27 views)
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