Meiosis I Chromosomes per cell Chromosome status DNA molecul

Meiosis I Chromosomes per cell Chromosome status DNA (molecules) per cell DNA (picograms) per cell Ploidy S G2 Prophase I and prometaphase I Metaphase I Anaphase I Telophase I and cytokinesis I

Solution

Points to Remember:

1. Number of chromosomes= Number of centromeres

2. Number of DNA molecule increases only when the DNA replicates that is only in S phase.

3. Number of DNA decreases only when the cell divides.

	G1	S	G2	PROPHASE I	METAPHASE I	ANAPHASE I	TELOPHASE I
Chromosome per cell	6	12	12	12	12	12	6
Number of DNA molecules per cell	6	6	6	6	6	12	6
Chromosome status				Each chromosome pairs with it\'s corresponding homologous chromosome to form tetrad.	Spindle fibres attach to the chromosome.The homologous chromosomes align at the equator of the cell.	The spindle fibres pull the homologous chromosome at the opposite ends of the cells.	Nuclear membranes form, and cell separates into two genetically different cells.
Ploidy	2n	2n	2n	2n	2n	2n	n