Information

Glossary - Letters X / Y / Z


X - Chromosome X. Chromosome that in mammals determines the formation of female sexual characteristics. For the formation of females you need pair XX. (see Y).

Xanthophyll - Yellow pigment that occurs in plants, a member of the carotenoid group.

Xerophytmia - Process of dryness and ulceration of the transparent cornea of ​​the eye, usually caused by lack of vitamin A, which can lead to partial or total blindness.

Xylem - Or wood. Tissue responsible for conducting the raw sap of tracheophyte plants.

Y - Y chromosome. Chromosome that in mammals determines the formation of male sexual characteristics. For male training you need pair XY. (see X)

Zygote - Egg or zygote is the name of the cell formed after the fusion of male gametes. See cardiogram.

Zooplankton - a group of animals, usually microscopic, that float in aquatic ecosystems and which, although they have their own movements, are not able to overcome the currents.

Zonula adherens - See intermediate junction.

Zonula occludens - See narrow junction.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z