Class XI

What is the average cell cycle span for a mammalian cell?
  1. 48 hours
  2. 12 hours
  3. 4 hours
  4. 24 hours
Polyploidy is the property of
  1. Maintaining the genetic materials
  2. Decreasing the number of chromosome sets
  3. Increasing the size of chromosomes
  4. Increasing the number of chromosome sets.
Each chromosome consists of ---- chromatid.
  1. Eight
  2. Four
  3. One
  4. Two
S phase marks
  1. Chromosome condensation
  2. It carries out normal metabolism
  3. DNA replication and chromosome duplication.
  4. Cytoplasmic growth
Two similar chromosome of each type present in diploid cells are called as
  1. Paternal chromosome
  2. Sister chromosome
  3. Maternal chromosome
  4. Homologous chromosomes
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