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.
A semipermeable membrane is any biological or synthetic membrane that allows certain molecules or ions to pass through while restricting others.
Answer:
Chromosomal changes occur, Induced mutations occur, and Viable errors in DNA
Explanation: I just took it :)
One drawback to solar energy is that it's cannot work during the night
Answer:
I'm not completely sure but my best guess would be the 3rd one