Class XI

The name virus was given by
  1. D.J.Ivanowsky
  2. Beijerinek
  3. Pasteur
  4. W.M.Stanley
Plant disease in which pathogen is seen as cottony growth on the surface of host is
  1. Downy mildew
  2. Powdery mildew
  3. Rust
  4. Smut
Genetic material for retrovirus is
  1. DNA
  2. RNA
  3. Both DNA and RNA
  4. Nucleoprotein complex
Which one can be photosynthetic as well as saprophytic in
  1. Mushroom
  2. Euglena
  3. Amoeba
  4. Paramecium
Fusion of protoplasm between to motile or non-motile gamete is called
  1. Plasmogamy
  2. Heterogamy
  3. Homogamy
  4. Karyogamy
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