Mitosis, Meiosis and Stem cells

Mitosis

Single cell makes 2 identical daughter cells

How many chromosomes do new cells from Mitosis have?

46

Mitosis use

Replacing damaged/worn out cells and for body growth

Meiosis

2 daughter cells divide to form unique gametes (4 daughter cells)

How many chromosomes are in Meiosis daughter cells?

23

Stem Cells

Unspecialised cells that can develop into other cells - divided via mitosis

Stem cells use

Used to grow tissue, organs - help with spinal injuries, Parkinson’s and T1D

Embryonic Stem Cells

From early embryo/ umbilical cord - readily available from IVF - moral issues

Meristem Stem Cells

Plant tissue, roots and shoots - Plants quickly and economically

Adult Stem Cell

Bone marrow from adult bones - only transforms into blood cells, no rejection, can cause infection