What is the difference between a primary oocyte and a secondary oocyte?

Differentiate between: Primary oocyte and Secondary oocyte.

Primary oocyte is

Primary oocyte is

What are the differences between primary data and secondary data?

Secondary oocyte is

Difference between:Spermatocytes and Oocytes.

Mention the number of chromosomes found in the following cells of humans: (a) Primary oocyte (b) Secondary oocyte (c) Ootid (d) Follicle.

50 secondary spermatocytes and 50 secondary oocytes will give rise to