How Gum Disease Starts: Whenever your pup eats, plaque is formed from bits of food and bacteria that collect around the gum line. If this plaque isnât removed, in just a few days, it will harden into tartar that sticks to your dogâs teeth.Tartar irritates the gums, resulting in inflammation, also known as âgingivitisâ.henever your pup eats, plaque is formed from bits of food and bacteria that collect around the gum line. If this plaque isnât removed, in just a few days, it will harden into tartar that sticks to your dogâs teeth.
Heterochromia iridis is a condition characterized by abnormalities of the iris (the colored part of the eye). In people affected by complete heterochromia, the iris of one eye is a different color than the iris of the other eye.
The zygote is diploid, meaning that it contains two sets of chromosomes. Sex Chromosomes X-Y. The male gametes or sperm cells in humans and other mammals are heterogametic and contain one of two types of sex chromosomes. Sperm cells carry either an X or Y sex chromosome. Female gametes or eggs, however, contain only the X sex chromosome and are homogametic. The sperm cell determines the sex of an individual in this case. If a sperm cell containing an X chromosome fertilizes an egg, the resulting zygote will be XX or female.