Multiple Choice Questions

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Select the correct combination of the statement (A-D) regarding the characteristics of certain organisms.

A. Methanogens are Archaebacteria, which produce methane in marshy areas.
B. Nostoc is a filamentous blue-green algae, which fixes atmospheric nitrogen.
C. Chemosynthetic autotrophic bacteria synthesise cellulose from glucose.
D. Mycoplasma lacks a cell wall and can survive without oxygen.

  • B, C

  • A, B,C

  • B, C, D

  • B, C, D


D.

B, C, D

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Peripatus is a connecting link between

  • Ctenophora and Platyhelminthes

  • Mollusca and Echinodermata

  • Annelida and Arthropoda

  • Annelida and Arthropoda

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Which one of the following has haplontic life cycle?

  • Funaria

  • Polytrichum

  • fully developed foetus and placenta

  • fully developed foetus and placenta

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Virus envelope is known is 

  • capsid

  • virion

  • nucleoprotein

  • nucleoprotein

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An example of endomycorrhiza is 

  • Nostoc

  • Glomus

  • Agaricus

  • Agaricus

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T O Diener discovered a

  • free infectious RNA

  • free infectious DNA,

  • infectious protein

  • infectious protein

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Trichoderma harzianum has proved a useful microorganism for 

  • bioremediation of contaminated soils

  • reclamation of wastelands

  • gene transfer in higher plants

  • gene transfer in higher plants

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Phylogenetic system of classification is based on 

  • evolutionary relationships

  • morphological features

  • chemical constituents

  • chemical constituents

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Which one of the following is wrongly matched?

  • Puccinia - Smut

  • Root - Exarch protoxylem

  • Cassia - Imbricate aestivation

  • Cassia - Imbricate aestivation

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Palisade parenchyma is absent in leaves of 

  • sorghum

  • mustard

  • soybean

  • soybean

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