Question

Mention True or False : 1. During gastrulation, cells enlarge and form tissues by elongation

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Answer

Question

Mention True or False

  1. During gastrulation, cells enlarge and form tissues by elongation. 
  2. In fern, alternation of generation is found.
  3. By fertilization, the ovule converts into a seed.
  4. The paired homologous chromosomes together are called synapsis.
  5. Pyrimidines are two types-cytosine and guanine.

Answer

  1. True
  2. True
  3. True
  4. False; The paired homologous chromosomes are not called synapsis. Synapsis is the process in meiosis where homologous chromosomes come together and physically connect, but the paired chromosomes themselves are referred to as homologous chromosomes.
  5. False; Pyrimidines are not two types. Pyrimidines are a type of nitrogenous base found in DNA and RNA, and there are three types of pyrimidines: cytosine, thymine (in DNA), and uracil (in RNA). Guanine is a purine base, not a pyrimidine.

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