Answer:
Option (1)
Explanation:
Meiosis is also known as reduction division. Meiosis is the process of cell division by which a parent cell divides to give four daughter cells each with half number of chromosomes.
Crossing over may occur during meiosis I of the cell cycle. Crossing over will not occur in the cells immediately after the fertilization of egg and zygote restores the original number of chromosomes.
Thus, the correct answer is option (1).
D, death & birth rates are at an equilibrium causing population to be constant
The answer to the question is that nuclear pores allow all types of RNA to exit the nucleus.
A cell membrane. Cell membranes are phospholipid bilayers (a.k.a 2 layers of phospholipids)
Answer:
Rune Elmqvist is designated with the credits of establishing the first artificial cardiac pacemaker.
Explanation: