A human cell contains at least two meters of DNA that is compacted to fit into a nucleus that is about six micrometers in diameter. The proteins responsible for packaging this DNA are called , of which there are primary types.

Histones

Four (4) Primary types

Explanation:

Histones are proteins which are involve in packaging.

4 primary types which are  H1, H2 , H3, H4.

The proteins responsible for packaging this DNA are called Histones , of which there are four (4)  primary types.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.