CSIR UGC NET June 2010 previous paper for Life Science

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CSIR UGC NET June 2010 previous paper for Life Science Powered By Docstoc
					      CSIR UGC NET June 2010 previous paper for Life Science
                      (Based on Memory)

                                         Paper I
1. Which among the following is not a polymer?
a) rubber
b) cellulose
c) vinyl alcohol

2. Sky appears blue because of                           http://biohunting.blogspot.com
a) scattering of light
b) composition of sunlight
c) a and b

3. Four times the square of a number is one more than three times the number. Find the
number
a) 4  b) –4     c) 1     d) -1

4. Three balloons are of the same size,one was filled with hydrogen,another with helium
and one with carbon dioxide. let F1, F2, F3 be the buoyant forces acting on them, then
which of following is correct
a. F1>F2>F3     b. F3>F2>F1     c. F2=F1>F3         d. F3=F2>F1

5. Microorganism mostly used for controlling insect population include
a. Bacillus thuriengenesis b. Agrobacterium tumefaciens

6. Evolution of Dinosaurs time?
a. 6.5 millions years ago
b. 600 million yrs ago                               http://biohunting.blogspot.com
c. 6 billion years ago
d. 60 million yrs ago.

7. Incorrect transfusion of blood results in death of the patient due to
a) precipitation
b) agglutination of blood cells
c) kidney failure

8. If the sample taken from HIV patient serum blood sample, will detect in Western
blotting
a) viral antigens
b) viral particles
c) viral proteins-specific antibodies

9. The antibiotic which causes pre-chain termination in protein synthesis in E.coli
a) puromycin
b) chloramphenicol
c) tetracyclin
d) Streptomycin

10. A myopic person have astigmatism is correcting by using
a) spherical convex lens only
b) cylinderical and convex lens
c) concave and cylinderical lens
d) spheriacal concave lens only

11. Ammonia reacting with copper sulphate gives blue colored complex. The blue color is
due
a) Cuprous
b) Cupric                                       http://biohunting.blogspot.com
c) Sulphate
d) Ammonium complex

12. When lactose operon and tryp operon are fused , B-galacoside will express when
a) Lactose and glucose are absent


http://biohunting.blogspot.com                   http://biochemistryden.blogspot.com
b) only in presence of tryptophan
c) only in absence of tryptophan
d) lactose and glucose are present

13. Cadmium resistant plant is
a) Brassica juncea

14. Erb B2 gene is responsible for
                                                         http://biohunting.blogspot.com
a) breast cancer
b) lung cancer
c) cervical cancer
d) oval cancer

15. Macrophages give the foreign cells to
a) proteosome
b) lysozome
c) T cell

16. During synthesis phase of cell division, the amount of DNA doubles, then the number
of chromosomes will
a) doubles
b) halves
c) remain unchanged
d) qudrables

17. Oxidation of copper sulphate occurs in
A. Zn + CuSO4 -- ZnSO4 + Cu
B. Cu + AgNo3 -- CuNo3 + Ag
C. MgSo4 + Cu -- CUSo4 + Mg
D. Cu + AuNo3 -- Au + CuNO3
a) A and C
b) B and C
c) C and D
d) Band D
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                                            Paper II
1. (a) How to find out the surface area of leaf without using any instrument?
(b) A person went for a field trip to mountain and took some photographs of an earthworm. After
return how would he find the actual length of the earthworm by the help of the photos he has
taken?

2. Name the substrates and enzymes in C2 cycle in mitochondria and peroxysome.

3. (a) What is e value and score with reference to BLAST?
(b) What are the methods to find out protein motifs. What are the various symbols used for
representation.

4. What mutation according to ABC model would lead to the following result?
Sepal, Sepal, Sepal, Sepal

5. Describe how nitrogen is fixed?

6. What do you mean by C sink ? and what role does it play in global warming?

7. Write 2 importance of TFIIH and carboxy terminal domain of RNA polymerase.

8. Give an account of aluminium toxicity in plants?

9. What are DNA vaccines?

10. What do you mean by somatic gene therapy?


http://biohunting.blogspot.com                        http://biochemistryden.blogspot.com
11.How was it known before sequencing that the E.coli DNA is circular?

12. How will you prove that the neuron conduction across membrane occurs by chemicals?

13. What is the difference between corpus luteum and corpus albicans?

                                             Some more
    1.    Product of sucrose is?
    2.    Describe the structural and functional difference between leucoplast, chromoplast and ----?
    3.    Which is strait chain sugar.
    4.    What parameter would you use to find out the relation between two variables?
    5.    What do you mean by non parametric statistics? When do you use non parametric statistics?
          give eg 40 fish were exposed to chemicals A and B. of them, 28 fish moved towards chemical A
          and rest towards B. set up a test to assess this, and state the null hypothesis. what should be
          the conclusion?
    6.    chi square value for df=1 given
    7.    Differentiate between correlation and regression. Give an eg where correlation has no
          regression
    8.    Write the logistic growth curve equation for species A and B and modify them when they
          underprey predator relationship In wild dogs, which display lek behavior, what evolutionary
          force decide the males to engage in hunting and caring for the pups?
    9.    What is tetanization? What is rigor mortis?
    10.   What are type I and type II diabetes?
    11.   Draw the maturation stages of RBC
    12.   How is area related to species richness? Draw the graph and derive the equation. how is the
          above significant to island biogeography. (2 DNA sequences draw, one with excess AT, another
          with excess GC) which of the above will be more prone to damage by a toxic stress? how does
          DNA repair such damage?
    13.   Concentration of acetylchloine is 100 times greater in synaptic vesicles than in cytosol where it
          is produced. Explain
    14.   A blastomere given...certain areas marked...q: which area will develop into which organ?(don’t
          remember the ques properly..sorry)
    15.   Explain about the outlines of IgE degranulation mechanism?
    16.   What is use of transgenic animals?
    17.   How biosensors work?
    18.   What is the fate of protein when its N terminal signal sequence binds to SRP?
    19.   Draw the structure of Guanosine monophosphate and show the number of every C and N
          atom.
    20.   Draw the ramachandran plot for D-Ala showing allowed combinations of the conformational
          angles.



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