biology clarilifyers only!?

Question

can someone describe how mitosis & meiosis play a part in the formation and development of a baby ?!

i needa write a report---- a detailed report--- & i dont find it very detailed at all in my textbook ------

Answer 1

A normal human has 46 chromosomes. 23 from each parent. The 23 that come from your mother are from an egg and from your father is in sperm. Egg and sperm are gametes. Gametes are formed from meiosis, when a cell with 46 chromoses divides and forms 4 new cells with 23 chromosmes each. Your book ought to mention this.
When the egg becomes fertilized with the sperm, the fertilized egg starts to divide through mitosis. In mitosis the cells divide into two new cells with 46 chromosomes in each. The cells keep on dividing and dividing, making the baby.

Answer 2

Meiosis is the process in which a '2n' cell duplicates then divides into 4 'n' cells. 'N' cells contain one pair of each cromossome of a species, and thus uniting 2 'n' cells generates a full set of cromossomes (in pairs). If we're talking about a baby, that's the mother's egg and the father's spermatozoid. This new cell starts dividing by mitosis, which is the division of '2n' cells into more '2n' cells. This means growth. So from one cell we get a full baby, after many and many mitosis and cell differentiation.

PS. 2n cells are how we work, some species can have more than 2 pairs of them, many of them plants.

Answer 3

Meiosis creates the egg and the sperm that forms the baby at conception. Mitosis is the process of cell replication that multiplies the original fertilized egg into trillions of cells that become 'a baby'.