Multiple Choice Questions

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Kappa particles indicate

  • nuclear inheritance

  • cytoplasmic inheritance

  • mutation

  • nucleo-cytoplasmic inheritance


B.

cytoplasmic inheritance

Kappa particles are found in Paramecium and possess cytoplasmic inheritance, also called extra-chromosomal inheritance. The Paramecium carrying kappa particle are also called killer strain.


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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 insect is useful for us

  • Periplaneta

  •  Musca

  • Bombyx

  • Mosquitoes


Which of the following as a living fossil 

  •  Pinus 

  • Gnetum

  • Ginkgo 

  • Riccia


Green plants constitute

  •  first trophic level

  • second trophic level

  • third trophic level

  • complete food chain


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The plant that is characteristics component of mangrove vegetation

  • Rhizophora mangel

  • Ficus religiosa

  • Mangifera indica

  • Prosopis specigera


Perisperm is

  • degenerate part of synergids

  • peripheral part of endosperm

  • degenerate part of secondary nucleus

  • remnant of nucellus


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


Transformation in bacteria was discovered by

  • Lederberg 

  • Griffith

  • Avery et. al

  • Tatum


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The arrangement of genes on chromosomes is

  • linear 

  • ovoid

  • diffused 

  • spiral