Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

91.

Kaziranga wild life sanctuary is famous for

  • tiger 

  • musk deer

  • elephant

  • rhino


D.

rhino

Rhinoceros (rhino) are protected in Kaziranga sanctuary at Sibsagar, Jorhat in Assam which was started in 1987.


92.

Human sperm was discovered by

  • Leeuwenhoek

  • Aristotle

  • Graaf

  • Pander


A.

Leeuwenhoek

Sperm were first observed in 1677 by Antonie van Leeuwenhoek using a microscope, he described them as being animalcules (little animals), probably due to his belief in preformationism, which thought that each sperm contained a fully formed but small human.


93.

Soil carried by gravity is

  • alluvial

  • eolian

  • colluvial

  • glacial


C.

colluvial

Colluvial soil is transported by gravity, alluvial soil is transported by water, eolian soil is transported by wind and glacial soil is transported by glaciers ie, large ice pieces.


94.

Noncleidoic eggs occur in

  • birds

  • fish

  • reptiles

  • platypus


A.

birds

Non Cleidoic egg - Egg membranes are soft in these eggs e.g. All viviparous animals and in oviparous animals which lays eggs in water.


95.

The famous 'Chipko Movement' was started by

  • Bahuguna

  • Rajeev Gandhi

  • Indira Gandhi

  • Salim Ali


A.

Bahuguna

Sunderlal Bahuguna (born 9 January 1927) is a noted Garhwali environmentalist and Chipko movement leader. The idea of Chipko movement was of his wife and the action was taken by him. For years he has been fighting for the preservation of forests in the Himalayas, first as a member of the Chipko movement in the 1970s, and later spearheaded the Anti-Tehri Dam movement starting 1980s, to early 2004.


96.

The pioneer country in the production of fuel alcohol is

  • Saudi Arabia 

  • Iran, Iraq

  • Brazil

  • Japan


C.

Brazil

Brazil is the Pioneer country in the production of fuel alcohol, which is used in automobiles like cars, buses and motorcycles as a substitute of petroleum.


97.

Long fibres of cotton seed are known as

  • coir

  • fuzz

  • lint

  • flax


C.

lint

Long fibres of cotton are called lint and small fibres are called fuzz. Lint are extractable while fuzz are non-extractable


98.

Most simple amino acid is

  • lysine

  • glycine

  • aspartic acid 

  • nucleic acid


B.

glycine

Glycine is the amino acid that has a single hydrogen atom as its side chain. It is the simplest possible amino acid. The chemical formula of glycine is NH2‐CH2‐COOH. Glycine is one of the proteinogenic amino acids, and is notable as the only one that is achiral.


99.

Koch's postulates are not applicable to

  • TB 

  • leprosy

  • cholera

  • diphtheria


B.

leprosy

Koch's postulates are not applicable to leprosy because the causative agent of leprosy, Mycobacterium leprae has never been grown on artificial media.


100.

Which of the following gland is often referred in relation with AIDS

  • Thyroid

  • Thymus

  • Adrenal

  • Pancreas


B.

Thymus

The thymus gland, which plays a key role in the maturation and functioning of the lymphoid system, is implicated in the acquired immune deficiency syndrome (AIDS). The observation that the thymic hormone, thymosin α1, is elevated in individuals at risk for AIDS (as opposed to being depressed in other immunodeficient states) has provided the first direct evidence that the thymus is malfunctioning early in the course of this deadly disease.