Test Details

Strategies For Enhancement in Food Production, Biotechnology and Its Applications and 2 other Topics

Term ii

Jan 26, 9:00 AM

120 minutes

Jan 27, 9:00 AM

76.0 marks

MCQ

50 questions

Partha Das

TEACHER

Class Details

BIOLOGY

CLASS 12 ENGLISH MEDIUM(CBSE+WBCHSE) 2021-22

BIOLOGY

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Question Text

Question 2 :
Major fish production from inland water is carried out through culture called as

Question 3 :
Whichof the following processes include the mass emigration of bees to settle downelsewhere in order to form a new hive ?

Question 4 :
Growing more than one species of fish in the same water body is

Question 6 :
Selective breeding of organism (animals husbandry and plant breeding programs) for specific desirable characteristics are example of 

Question 7 :
Which one of the following is not an exotic breed of cow?

Question 12 :
I. Temperature II. Humidity III. Vegetation  The abiotic factors of ecosystem include

Question 16 :
Large unit of land having different types of plants and animals is known as

Question 17 :
Which of the following includes all living organisms and all life-supporting regions of the Earth?

Question 19 :
A large regional unit characterised by a major vegetation type and associated fauna found in a specific climatic zone constitutes a/an

Question 21 :
Identify, which one of the following is an exampleof incomplete ecosystem?

Question 23 :
Which of the following processes involves transferring and combination of desirable characteristic features into plants and multiply them ?

Question 24 :
Which of the following biomolecules can be analysed by ELISA test?

Question 26 :
X technique is now routinely used to detect HIV in suspected AIDs patients. It is being used to detect mutations in genes in suspected cancer patients too. It is a powerful technique to identify many other genetic disorders. Identify X-

Question 28 :
After removal of signal peptide, the secretory protein involved in formation of insulin is known as

Question 32 :
Which of the following techniques use radioactive precursors for observing metabolic activities of macromolecules?

Question 33 :
a functional ADAcDNA can be introduced into cells of the patients receiving gene therapy by using vector constituted by

Question 34 :
Assertion: The plants in which foreign genes have been introduced through genetic engineering are called transgenic plants. Reason: Transgenic animals have been extensively used as models for biomedical research.

Question 35 :
A person suspected to suffer from AIDS is advised to undergo ............ diagnostic test.

Question 36 :
Plants in comparison to animals are more rapidly manipulated by genetic engineering. Select out the most probable reason for this.

Question 40 :
Ozone exists in earth stratosphere and is responsible for protecting humans from harmful _______.

Question 41 :
Measurement of the rate of oxygenconsumption in unit volumeof water over a period of time is done to find out

Question 44 :
Raju, a farmer gets his field checked for soil toxicity. The report shown high level of toxic chemicals in his field. How can these toxic chemicals in his field. Can these toxic chemicals in the soil harm the environment?

Question 45 :
For how long and at what temperature an experiment is run to determine the value of BOD of a water body?

Question 47 :
If BOD of river is high, it means that the river 

Question 48 :
Which of the following is regarded as the main cause of groundwater contamination?

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