Answer:
The behavior of chromosomes during meiosis and fertilization is responsible for most of the variation that arises in each generation. Three mechanisms contribute to genetic variation arising from sexual reproduction: independent assortment of chromosomes, crossing over, and random fertilization.
Answer:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
Explanation:
Mitosis
Definition of Mitosis: <span>The process where a </span>single cell<span> divides resulting in generally two identical </span>cells<span>, each containing the same number of </span>chromosomes<span> and genetic content as that of the original </span>cell<span>.</span>
The answer is the nucleus
