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Mitosis is the cell division that produces 2 daughter cells with genetically identicle DNA to the parent cell. These are none as diploid cells. Meiosis requires two stages of cell division to produce 4 daugh...

The function of a blood clot is to prevent blood loss from damaged blood vessels. In order for a blood clot to form, activated platelets and the damaged tissue release clotting factors which are proteins in ...

As the action potenial reaches the synaptic terminal depolarisation causes voltage-gated Ca 2+ channels to open. The opening of these ion channels causes an influx of Ca 2+ ions because of the high concentra...

Cell wall: Only present in plant cells, it provides structure and is completely permeable to biological molecules. Cell membrane: Much thinner than cell wall and is present in all cells. It is selectively pe...

Dominant alleles need the presence of only one copy to achieve expression. Recessive alleles need two copies to achieve expression. In Co-Dominance, both alleles are expressed at the same time. <o:p>&l...