Cytokinesis marks the end of mitosis, which effectively produces two cells with genetically identical nuclei.
How does mitosis produce two genetically identical nuclei?
During mitosis, the chromosomes, which have already duplicated, condense and attach to spindle fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei.
What ensures that mitosis produces two genetically identical nuclei quizlet?
What ensures that mitosis produces two genetically identical nuclei? Identical chromatids are pulled to opposite poles by spindle microtubules.
What produce 2 genetically identical cells?
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Where does mitosis occur in the body?
Cell division by mitosis occurs in all human body cells except the gonads (sex cells). During mitosis, the DNA is exactly copied and a new daughter cell created with the same number of chromosomes as the parent cell, ie 46.
What helps make the genome of each human unique?
When a mutation occurs in a sex cell—a sperm or an egg—it can be passed along to the next generation of people. Your genome contains about 100 “new” mutations—changes that occurred as your parents’ bodies made the egg and sperm cells that became you. These genome variations are uniquely yours.
What does high mitotic index mean?
An elevated mitotic index indicates more cells are dividing. In cancer cells, the mitotic index may be elevated compared to normal growth of tissues or cellular repair of the site of an injury.
What is the difference between mitosis and cytokinesis?
Mitosis is the division of the nucleus, while cytokinesis is the division of the cytoplasm. They are both two stages in the cell cycle.