Class XI

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
Identify the cuboidal virus from the following
  1. T2
  2. Polymyelitis virus
  3. Foot and mouth virus
  4. TMV virus
Fusion of protoplasm between to motile or non-motile gamete is called
  1. Plasmogamy
  2. Heterogamy
  3. Homogamy
  4. Karyogamy
A peculiar group of dual organism which are formed by an association between an algae and a fungus.
  1. Mucor
  2. Mushroom
  3. Lichens
  4. Yeast
Two categories of animals on the basis of red blood are
  1. Animate and inanimate
  2. Enaima and Anaima
  3. Leucocytes and erythrocytes
  4. Erythrocytes and Thrombocytes
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