Class XI

During zygotene stage chromosomes start pairing together and the process is called as
  1. Fertilisation
  2. Fertilisation
  3. Synapsis
  4. Recombination
The sexual reproduction involves fusion of special type of cells called gametes, produced by
  1. Mitosis
  2. Equational division
  3. Meiosis
  4. Amitosis
Small disc like structures that occur in the centromere are
  1. Centriole
  2. Nucleolus
  3. Microtubules
  4. Kinetochore
Multinucleate condition arise when Cytokinesis does not follow karyokinesis, this type of cells are called as
  1. Uninuleate
  2. Coenocytes
  3. Holotype
  4. Prototype
Arrange the order of events taking place in anaphase II stage of meiosis: a. Metaphase plate spilts b. Each chromosome moves away from equatorial plane c. Centromeres split and chromatids separate. d. Chromatids move to opposite poles
  1. d ,c ,b, a
  2. c ,a, d ,b
  3. a ,b , c ,d
  4. b , d ,a , c
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