10.2 bio

Question 1

The order and events of the stages of mitosis

Answer 1

Interphase
-prep for cell division
prophase
-nucleus starts to break down, spindle fibers start to form
metaphase
-the cell’s duplicated chromosomes, which have condensed and become visible, align along the middle of cell
anaphase
-the sister chromatids, which were previously joined, separate and are pulled towards opposite poles of the cell by spindle fibers
telephase
-the nuclear envelope reforms around each set of chromosomes, and the chromosomes decondense, preparing the cell for division

Question 2

Definitions and examples of multipotent, pluripotent, and induced pluripotent stem cells

Answer 2

multipotent
-replace existing cells in organs as they wear out and die, only in specific cells
pluripotent
- have the ability to become any type of tissue cell in your body
induced pluripotent
-sends a signal and can become any tissue cell.

Question 3

What causes specialized cells to be different from each other

Answer 3

variations in gene expression, how cells are turned on and off, and they have their own purpose.

Question 4

explain how all of your body cells have the same genetic code but different functions

Answer 4

They express different proteins to have different functions to help with different things and go to different places. It would also be wasteful to make proteins that you don’t need.