Multiple Choice Questions

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The plant that is characteristics component of mangrove vegetation

  • Rhizophora mangel

  • Ficus religiosa

  • Mangifera indica

  • Prosopis specigera


A.

Rhizophora mangel

Rhizophora mangel is the component of mangrove vegetation and grows in marshes or nitrogen and air deficient soil. These plants possess vivipary and pneumatophores or respiratory roots


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Kappa particles indicate

  • nuclear inheritance

  • cytoplasmic inheritance

  • mutation

  • nucleo-cytoplasmic inheritance


Which insect is useful for us

  • Periplaneta

  •  Musca

  • Bombyx

  • Mosquitoes


Husband has blood group A and wife has blood group B. What is the blood group of children

  • A

  • B

  • AB

  • A, B, AB or 0


Which of the following as a living fossil 

  •  Pinus 

  • Gnetum

  • Ginkgo 

  • Riccia


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Green plants constitute

  •  first trophic level

  • second trophic level

  • third trophic level

  • complete food chain


Perisperm is

  • degenerate part of synergids

  • peripheral part of endosperm

  • degenerate part of secondary nucleus

  • remnant of nucellus


Transformation in bacteria was discovered by

  • Lederberg 

  • Griffith

  • Avery et. al

  • Tatum


An orthotropus ovule is one in which micropyle and chalaza are

  •  in straight line of funiculus

  • parallel of funiculus

  • at right angles to funiculus

  • oblique to funiculus


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The arrangement of genes on chromosomes is

  • linear 

  • ovoid

  • diffused 

  • spiral