What are the different types of cell reproduction in our bodies? Essential Question – What are the different types of cell reproduction in our bodies?

Think About It… Why do cells in our body divide?

What do we remember about Mitosis & Meiosis?

There are 3 types of cell division among organisms. Binary fission is used by simple one-celled organisms, like bacteria. More complex organisms use two types of cell division for two different purposes. The two types of cell division in our bodies are known as mitosis and meiosis.(my OH sis)

BrainPop! https://www.brainpop.com/science/cellularlifeandgenetics/mitosis/

Mitosis Mitosis is used when a cell needs to be replicated into exact copies of itself. Everything in the cell is duplicated. The two new cells have the same DNA, functions, and genetic code. The original cell is called the mother cell and the two new cells are called daughter cells. Examples of cells that are produced through mitosis include cells in the human body for the skin, blood, and muscles. http://www.ducksters.com/science/biology/cell_division.php

In real life, our cells have 46 chromosomes- 23 pair In real life, our cells have 46 chromosomes- 23 pair. Therefore, after mitosis, new cells must have 46 chromosomes. The number of chromosomes in our cells distinguishes us from other organisms. It makes us human. Fruit flies have 8 chromosomes and potatoes have 48.

Meiosis Meiosis is used when it is time for the entire organism to reproduce. There are two main differences between mitosis and meiosis. First, the meiosis process has two divisions. When meiosis is complete, a single cell produces four new cells instead of just two. The second difference is that the four new cells only have half the DNA of the original cell, instead of having identical DNA to the mother cell. This is important for life on Earth as it allows for new genetic combinations to occur which produces variety among organisms…different traits that make every organism unique. Cells that undergo meiosis are the cells used in sexual reproduction called gametes (egg and sperm).

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Recap… Mitosis is how all cells in our body, EXCEPT for our reproductive cells (egg and sperm), divide and make more of themselves. Meiosis is how our sex cells (reproductive cells) divide and make more of themselves.

There are 3 types of cell division among organisms. _______ ________is used by simple one-celled organisms, like _________. More ________ organisms use ____ types of cell division for two different ___________. The two types of cell division in our bodies are known as ________ and meiosis.(my OH sis)

Mitosis ___________ is used when a cell needs to be replicated into exact _________ of itself. Everything in the cell is _______________. The two _______ cells have the ______ DNA, functions, and __________ ________. The original cell is called the _________ cell and the two new cells are called _______________cells. Examples of cells that are produced through mitosis include cells in the human body for the ______, blood, and _______. http://www.ducksters.com/science/biology/cell_division.php

In real life, our cells have ____ chromosomes- ___ _____ In real life, our cells have ____ chromosomes- ___ _____. Therefore, after _______, new cells must have ___ chromosomes. The number of chromosomes in our cells distinguishes us from other _________. It makes us ______. Fruit flies have 8 chromosomes and potatoes have 48.

Meiosis _________ is used when it is time for the entire organism to __________. There are _____ main differences between mitosis and meiosis. First, the meiosis process has _____ divisions. When meiosis is complete, a single cell produces ________ new cells instead of just _____. The second difference is that the four ______ cells only have _____ the DNA of the ________ cell, instead of having identical DNA to the mother cell. This is important for life on Earth as it allows for new genetic combinations to occur which produces _______ among organisms…different _________ that make every organism unique. Cells that undergo meiosis are the cells used in sexual reproduction called ___________ (egg and sperm).

Which one of these is NOT like the others? ..\Unit 5 Molecular Biology 2014-2015\Molecular Biology Which one of these.notebook

Hot Seat vocabulary review

Wrap-up What topic in our unit on microbiology do you feel the least comfortable about for the upcoming test? The most comfortable?