XII TH Biology Test 3 For Practice
XII TH
Biology Test 3 For
Practice
Prof.Dr.Sadhana Nikam
Vice Principal RJ College
M.Sc B.Ed,PGDDE, Ph.D
Section I A
Q. Select and
write the correct answer.
(Ans indicate by *)
1.Ehanol
is commercially produced
through a particular
species of -------
a. Aspergillus *b. Saccharomyces
c. Clostridium d. Trichoderma
2. MOET
technique is used
for ---------
*a. Production of hybrids
b. inbreeding
c. outbreeding
d. outcrossing
3.In vitro amplification of DNA or RNA segment is known as -------
a. chromatography
b. southern blotting
*c. polymerase chain reaction
d. gel electrophoresis
4.Recombinant protein
----------- is used to
dissolve blood clots
present in the
body.
a. insulin
* b.
tissue plasminogen activator
c. relaxin
d. erythropoietin.
5. Which
factor of an ecosystem
includes plants, animals and
microorganisms?
*a. Biotic factor b. Abiotic
factor
c. Direct factor d. Indirect factor
6. Association between
sea anemone and
Hermit crab in
gastropod shell is
that of
a. Mutualism * b.
Commensalism
c. Parasitism d. Amensalism
7. The
second trophic level
in a lake
is ---------
a. Phytoplankton *b. Zooplankton
c. Benthos d. Fishes
8.After
landslide which of
the following type
of succession occurs ?
a. Primary * b. Secondary
c. Tertiary d. Climax
9.Select
odd one out
on the basis
of Ex situ
conservation.
a. Zoological park
b. Tissue culture
*c. Sacred groves
d. Cryopreservation
10.When
any species is
totally eliminated from
earth it is
called
a. endangered *b. extinct
c. Rare d. Threatened
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