Crossing Over and Independent Assortment – Cell Division Ep 5

In the last article we looked at meiosis - the type of cell division that produces haploid gametes in the reproductive organs. Today we're going to look at how meiosis can produce genetic variation in the gametes, and therefore genetic variation in offspring after the gametes fuse at fertilisation. We will also finish off by... Continue Reading →

Meiosis – Cell Division Ep 4

Meiosis is a little more complicated than mitosis, and has a different outcome. Meiosis is a method of cell division which only happens in the reproductive organs of organisms which reproduce by sexual reproduction. It produces genetically different gametes with half the number of chromosomes as the parent cell. These gametes (the egg cells and... Continue Reading →

Binary Fission – Cell Division Ep 3

In the last article we looked at mitosis as a method of cell division. However, mitosis can only take place in eukaryotic cells. Prokaryotic cells such as bacteria, which don't have a nucleus, divide by binary fission. This process produces two genetically identical daughter cells from the parent cell, and is a method of asexual... Continue Reading →

Mitosis – Cell Division Ep 2

Mitosis is a method of cell division used by multicellular organisms for growth and repair of tissues. Some plants and fungi (and rarely some animals) also use it for asexual reproduction - producing genetically identical offspring from one parent. Mitosis results in two daughter cells which are genetically identical to the parent cell. In this... Continue Reading →

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