Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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11.

Identify the incorrect match

  • Mulberry silk - Bombyx mori

  • Tasar silk - Antheraea pernyi

  • Muga silk - Antheraea assama

  • Eri silk - Attacus ricini


B.

Tasar silk - Antheraea pernyi

Tasar silk is obtained from Antheraea paphia that belongs to Family - Saturniidae. It is common in India, China and Sri Lanka. Antheraea pernyi is oak silkworm. It also produces good quality silk.


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12.

All chordates at one or other stage possess

  • two pairs of pentadactyl limbs

  • pharyngeal gill slits

  • movable jaw

  • vertebral column


13.

Statement I:- An injury to the anterior pituitary affects the growth of a person.

Statement II:- Injury to adrenal cortex is not likely to affect secretion of cortisol.

Choose the correct option

  • Statement I is correct but II is incorrect

  • Statement II is correct but I is incorrect

  • Both statement are correct

  • Both statements are incorrect


14.

Mammals have

  • biconvex RBCs to increase the surface area

  • biconcave RBCs to increase the surface area

  • spherical RBCs to increase the surface area

  • no RBCs


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15.

Match the Column I and Column II

Column I Column II
A. Squamous 1. Intestinal glands
B. Cuboidal 2. Trachea
C. Columnar  3. Ovary
D. Ciliated 

4. Blood vessels

5. Bronchioles

  • A - 2; B - 5; C - 1; D - 3

  • A - 4; B - 3; C - 1; D - 2

  • A - 4; B - 3; C - 1; D - 5

  • A - 4; B - 5; C - 1; D - 2


16.

A person was found to possess reduced haemoglobin content in the blood, caused due to disturbance in formation of RBCs. He is suffering from

  • Vitamin-B1 defeciency

  • Vitamin-A defeciency

  • Vitamin-B12 defeciency

  • Vitamin-E defeciency


17.

Which of the following region of root is responsible for increase in length of root?

  • Root cap region

  • Meristematic region

  • Region of elongation

  • Mature region


18.

Glycolysis is

  • C6H12O6 + 6O2  6O2 + 6H2O

  • C6H12O6  2C2H5OH + 2CO2

  • C6H12O6 2C3H4O3 + 2CO2

  • C3H4O+ NADH C2H5OH + CO2 + NAD+


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19.

The protein that reproduce within the living cells are termed as

  • plasmids

  • phages

  • prions

  • prophages


20.

The correct sequence of cellular growth stages is

  • division  differentiation  elongation

  • differentiation  division  elongation

  • division  elongation  differentiation

  • elongation  differentiation  division


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