Archaebacteria differ from eubacteria in

  • cell membrane structure

  • mode of nutrition

  • cell shape

  • mode of reproduction

Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom

  • Protista

  • Fungi

  • Animalia

  • Monera

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

  • A, B , D

Which statement is wrong for viruses?

  • All are parasites

  • All of them have helical symmetry

  • They have ability to synthesize nucleic acids and proteins

  • Anitbiotics have no effect on them

The first human hormone produced by recombinant 

  • insulin

  • estrogen

  • thyroxin

  • progesterone

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