Year-wise Biology practice

NEET 2021 Biology PYQs

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100 questions in this collection ยท Page 3 of 10

Question 21 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Principles Of Inheritance And Variation

The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called:
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Question 22 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Molecular Basis Of Inheritance

Complete the flow chart on central dogma.
Question illustration
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Question 23 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Evolution

The factor that leads to Founder effect in a population is:
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Question 24 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Strategies For Enhancement In Food Production

Mutations in plant cells can be induced by:
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Question 25 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Strategies For Enhancement In Food Production

Match List-I with List-II.
List-I List-II
(A)Protoplast fusion (I)Totipotency
(B)Plant tissue culture (II)Pomato
(C)Meristem culture (III)Somaclones
(D)Micropropagation (IV)Virus free plants
Choose the correct answer from the options given below:
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Question 26 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Biotechnology Principles And Processes

During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out:
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Question 27 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Biotechnology Principles And Processes

DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as:
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Question 28 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Biotechnology And Its Applications

When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as:
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Question 29 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Biotechnology And Its Applications

Which of the following is not an application of PCR (Polymerase Chain Reaction)?
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Question 30 of 100
๐ŸŸข NEET 2021 ๐Ÿ“˜ CLASS XII

Biotechnology And Its Applications

Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction)?
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