4

Question 1

what is the process of mitosis

Answer 1

Interphase - the cell is always in his stage DNA copies itself ready for mitosis

Prophase-DNA condenses so it becomes more visible. Membrane around the nucleus disappears.

Metaphase- Chromosomes and their copies line up into the middle of the cell.

Anaphase- the chromosomes and their copies are pulled to different parts of the cell.

Telophase- The new membrane is formed around the chromosomes so new cells can be formed.

Cytokinesis- The cell membrane pinches and divides into identical daughter cells.

Question 2

what are meristems

Answer 2

pat of the plant where growth occurs regions of unspecific cells capable of cell division- found in tips of routes.

Question 3

what are stem cells

Answer 3

Unspecialised cells. In animals they can continuously go under cell division and become specialised.

1. one type is embryonic stem cells.
2. tissue stem cells found in adults can be used to replace and repair cells. For example, brain, bone marrow, eyes, blood skin muscle.

this one needs editing