Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

41.

The earliest fossil form in phylogeny of horse is

  • Merychippus

  • Mesohippus

  • Eohippus 

  • Equus


42.

Autosomes in humans are

  • 11 pairs

  • 22 pairs

  • 23 pairs

  • 43 pairs


43.

Haeckel's biogenetic law or recapitulation theory states that

  • life history of an animal reflects evolutionary history of the same

  • progeny resembles parents

  • mutations are acquired characters

  • all organisms begin their life from zygote


44.

A colourblind mother and normal father would have

  • colourblind sons and normal/carrier daughters

  • colourblind sons and daughters

  • all colourblind

  • all normal


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45.

Cranial capacity of modern man is

  • 450-650 cc

  • 600-1000 cc

  • 900-1100 cc

  • 1200-1600 cc


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46.

Inheritance of ABO blood groups illustrates

  • polyploidy

  • multiple allelism

  • euploidy

  • dominance


D.

dominance

Inheritance of ABO blood groups is an example of multiple allelism. Multiple alleles are three or more alternative forms of genes or alleles occupying the same locus. Bernstein (1925) proposed that inheritance of ABO blood types of man is determined by a series of three allelomorphic genes IA, IB and i.


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47.

The most primitive cell like chemical aggregates capable of growth and division were

  • chemoautotrophs

  • eobionts

  • prokaryotes

  • microspheres


48.

Name the ship on which Darwin got opportunity for a voyage of world.

  • Titanic

  • Vikrant

  • Vectoria

  • Beagle


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49.

Which of the following are most abundant types of antibodies ?

  • IgA

  • IgE

  • IgG

  • IgM


50.

Ruminate endosperm occurs in

  • Annonaceae/Areca nut

  • Compositae

  • Cruciferae

  • Euphorbiaceae


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