Meiosis is a very important cell division process for animals and plants, because in these groups it is related to the production of gametes or spores (in plants), so meiosis is an important process for fertilization. By halving the number of chromosomes, this process guarantees, after fertilization, the restoration of the number of chromosomes in a species. In addition, meiosis enables genetic variability.
Meiosis begins after chromosome duplication, which occurs in the so-called interphase. After this duplication, the first of the two divisions that will occur in this cell division process begins.
Option C. A person inherits chromosomes from just one parent.
Explanation:
Genetic disorders or diseases that are caused by errors that occur during meiosis is called down syndrome. It is also known as trisomy 21. In this disease the person inherits one extra pair of chromosomes from one of the parent i. e. Father or mother.
It is the study of the characteristics features of the cardiac muscle cells with the ability to initiate action potential at certain level without connection to any external stimulus which the heart beats constantly and rhythmically. Cardiac muscle cells controls the rate of contraction of heartbeats.
