IIT Delhi Joint Admission Test Biological Sciences Question Paper 2016 : jam.iitd.ac.in
Organisation : IIT Delhi
Exam : Joint Admission Test
Document Type : Model Question Paper
Category or Subject : Biological Sciences
Year : 2016
Website : http://jam.iitd.ac.in/
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Download Question Paper 2016 : https://www.pdfquestion.in/uploads/9703-BL2016.pdf
Biological Sciences Question Paper 2016 :
Section – A :
Multiple Choice Questions (MCQ) :
Q. 1 – Q.10 carry one mark each.
Q.1 Slime molds belong to
(A) bacteria
(B) fungi
(C) protists
(D) plants
Q.2 Which ion is required for association of ribosome subunits?
(A) Ca2+
(B) Mg2+
(C) Zn+
(D) K+
Q.3 Kreb’s cycle occurs in the
(A) cytoplasm
(B) cristae of mitochondria
(C) mitochondrial matrix
(D) ribosomes
Q.4 Which of the following can bind to an antibody but cannot elicit an immune response in a healthy individual?
(A) Hapten
(B) Immunogen
(C) Antigen
(D) Alum as adjuvant
Q.5 Which one of the following ecosystems would have the maximum number of primary producers per unit area?
(A) Forest
(B) Pond
(C) Desert
(D) Grassland
Q.6 In the C4 pathway, carbon dioxide is concentrated in
(A) pith
(B) mesophyll cells
(C) endodermis
(D) bundle sheath cells
Q.7 LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively. Which one of the following statements is TRUE?
(A) Strain A is more virulent
(B) Strain B is more virulent
(C) Both strains A and B are avirulent
(D) Both strains A and B are equally virulent
Q.8 Alpha-amanitin affects
(A) bacterial RNA polymerase
(B) mitochondrial RNA polymerase
(C) RNA polymerase II
(D) RNA polymerase I
Q.9 In bacteria, conjugation between one F+ and one F- cells results in
(A) two F + cells
(B) two F- cells
(C) one F+ cell and one F- cell
(D) one Hfr cell and one F+ cell
Q.10 Vaccination is an example of
(A) naturally acquired passive immunity
(B) naturally acquired active immunity
(C) artificially acquired passive immunity
(D) artificially acquired active immunity
Q.11 What does the graphic representation of age groups of a population given below show?
(A) Declining population
(B) Stable population
(C) Increasing population
(D) Fluctuating population
Q.12 The beta oxidation of a saturated odd chain fatty acid in final thiolysis step yields
(A) one molecule of acetyl CoA
(B) two molecules of acetyl CoA
(C) one molecule of acetyl CoA and one molecule of propionyl CoA
(D) one molecule of acetyl CoA and one molecule of succinyl CoA
Q.13 The coordinates of the points of the intersections of the curves y = -x2 and x= -y are
(A) (0,0) and (1,1)
(B) (0,0) and (1,-1)
(C) (0,0) and (-1,1)
(D) (0,0) and (-1,-1)
Q.14 A cell with 46 chromosomes undergoing meiosis will have
(A) 92 chromatids at metaphase I and 46 chromatids at metaphase II
(B) 23 chromosomes at metaphase I and 23 chromosomes at metaphase II
(C) 92 chromatids at metaphase I and 23 chromatids at metaphase II
(D) 23 chromatids at metaphase I and 23 chromatids at metaphase II
Q.15 Which one of the following statements is TRUE for polymerization of actin and microtubules?
(A) Actin requires ATP while microtubules require GTP
(B) Actin requires GTP while microtubules require ATP
(C) Both actin and microtubules require ATP
(D) Both actin and microtubules require GTP
Q.16 Reduction of nitrate to ammonia is possible by assimilatory and dissimilatory pathways. Which one
of the following statements is TRUE?
(A) Both are inhibited by oxygen
(B) Only assimilatory nitrate reduction is inhibited by ammonia
(C) Only assimilatory nitrate reduction is inhibited by oxygen
(D) Both are inhibited by ammonia
Q.17 Commensalism is an interaction between two species, in which
(A) both the species are harmed
(B) both the species benefit
(C) one species benefits and the other remains unaffected
(D) one species benefits and the other is harmed
Q.18 A dominant gene B is responsible for the wild type body color of Drosophila, its recessive allele b produces black body color. A test cross of a wild type female gave 52 black and 58 wild type in the F1. If the wild type F1 females are crossed with black F1 males, what would be the expected genotypic ratio in the F2.
(A) Heterozygous wild – Homozygous black = 1:1
(B) Homozygous wild – Heterozygous black = 1:1
(C) Homozygous wild – Heterozygous wild : Homozygous black = 1:2:1
(D) All heterozygous black
Q.19 Which one of the following events does NOT occur in fungi during mitosis?
(A) Segregation of chromosomes
(B) Replication of the genetic material
(C) Formation of spindle fibres
(D) Disintegration of nuclear envelope
Q.20 The sedimentation velocity of particles depends on
(A) mass of the particles
(B) density of solution
(C) shape of particles
(D) extinction coefficient of particles