Answer:
1. X chromosome inactivation
Explanation:
X chromosome inactivation is a process that shuts down one X chromosome in all the cells of a female during early embryonic stages. It is done to balance the dosage of X-linked genes in males and females. The process of X chromosome inactivation is random which means that either paternal or maternal X chromosome may be inactivated in the cells. The inactivated X chromosome in a cell is transmitted to all of its daughter cells.
Therefore, some cells of a female express the paternal X chromosome while others express the maternal X chromosome. The random expression of the paternal or maternal X chromosome in females results in patches of cells with or without sweat glands.
Yes they can because the catalyst does not take part in the chemical reaction and remains unchanged after the reaction has ended. Biological catalysts are known to be recycled by the bodies in which they work.
Point A when inhalation begins
Answer:
The first picture is the best example of plant tissue.
Explanation:
Thank u and I hope this helps ;)
Answer:
Protozoa are single-celled eukaryotes
Explanation:
Eukaroytes are organisms whose cells have nuclei