Course Content
History of genetics
Learn introductory genetics with Braimy- B.Sc agriculture
About Lesson
  • Meiosis is responsible for the formation of sex cells or gametes that are responsible for sexual reproduction.
  • It activates the genetic information for the development of sex cells and deactivates the sporophytic information.
  • It maintains the constant number of chromosomes by halving the same. This is important because the chromosome number doubles after fertilization.
  • In this process independent assortment of maternal and paternal chromosomes takes place. Thus, the chromosomes and the traits controlled by them are reshuffled.
  • The genetic mutation occurs due to irregularities in cell division by meiosis. The mutations that are beneficial are carried on by natural selection.
  • Crossing over produces a new combination of traits and variations.
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