Chiasma [Chiasma; Greek Chiasmos Location In Greek Form. Letters X (Xi)]

Chiasmus is a term used in various fields of study, including genetics and psychology. In this article we will look at the chiasmus using the example of the optic chiasm and in the context of genetics.

1. Optic chiasm The optic chiasm is where the optic nerves cross in the retina. It is shaped like an X and is where visual impulses from the two eyes combine into one visual signal. This is a key mechanism for binocular vision and depth awareness.

2. Chiasma in genetics In genetics, the concept of chiasma is applied to the X-shaped structure that is formed during the prophase of meiosis. In prophase, the chromosomes of bivalents (two pairs of chromosomes connected by common areas) are conjugated and divided into two groups of heterochromosomes: X and Y. Thus, a chiasm appears, which has the shape of the letter “X”. This X-shape is formed due to the crossing of chromosomes during the process of meiosis. Conjugation and crossing of chromosomes create the genetic information necessary for procreation. 3. Differences between the optic chiasm and the optic chiasma in genetics Although the optic chiasm and chiasma have similarities, there are also differences between them. Two different types of gathering