Analyse the events during-every stage of cell cycle and notice how the following two parameters change :
(i) Number of chromosomes (N) per cell.
(ii) Amount of DNA content (C) per cell.

Name the stage of the cell cycle at which, each one of the following events occur : Chromosomes are moved to spindle equator.

Which of the following type of cubic lattic has maximum number of atoms per unit cell ?

Name the stage of the cell cycle at which, each one of the following events occur : Centromere splits and chromatids separate.

Name the stage of cell cycle at which one of the following events occur: (i) Pairing between homologous chromosomes takes place (ii) Crossing over between homologous chromosomes takes place

Name the stage of cell cycle at which one of the following events occur: (i) Chromosomes are moved to spindle equator (ii) Centromere splits and chromatids separate (iii) Pairing between homologous chromosomes takes place (iv) Crossing over between homologous chromosomes takes place

[A] : Amount of DNA per cell is fixed . [R] : Amount of RNA is variable in a cell .

Which one of the following combinations of chromosome number (n) and DNA content (c) is true of the diplotene stage of mammalian oocyte?

The total amount of DNA in human diploid cells is not dissimilar from that of chimpazee but the diploid number of chromosomes in chimpanzee is

If the chromosome number of a plant species is 20, what would be the chromosome number in its (i) Pollen grains, (ii) Endosperm cells?