Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

71.

Cotton fibre is basically a type of

  • trichome

  • scale

  • dried seed coat

  • non glandular hair


72.

The term 'alpha diversity' refers to

  • genetic diversity

  • community and ecosystem diversity

  • species diversity

  • diversity among the plants


73.

Percentage composition of fibroin and sericin in silk is

  • 50 : 40

  • 80 : 20

  • 30 : 70

  • 40 : 60


74.

Which one of the following is biological insecticide?

  • Tiger beetle

  • Caterpillar

  • Silkmoth

  • Mazra poka


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75.

Which one of the following diseases is spread by housefly?

  • Dengue fever

  • Encephalitis

  • Filariasis

  • Typhoid


76.

Nutrient enrichment of a lake will cause

  • eutrophication

  • stratification

  • biomagnification

  • bioaccumulation


77.

Tuberculosis is caused by

  • Mycobacterium sp.

  • Aspergillus sp.

  • Clostridium sp.

  • Vibrio sp.


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78.

The scientific name of Java man is

  • Homo habilis

  • Homo sapiens neandarthalensis

  • Homo erectus erects

  • Australopithecus bisei


C.

Homo erectus erects

Java man is the name given to fossils discovered in 1891 at Trinil Ngawai Regency on the banks of the Solo river in East Java in Indonesia. It was one of the first known specimens of Homo erectus. The scientific name Pithecanthropus erectus, a name derived from Greek and Latin roots meaning upright ape man.


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79.

Which of the following condition is called monosomic?

  • 2n + 1

  • 2n + 2

  • n + 1

  • 2n - 1


80.

Which of the following is structural subunit of DNA?

  • Protein

  • Carbohydrate

  • RNA

  • Nucleotide


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