Bio (Exam 4) Cell Cycle and Mitosis

Question 1

Describe two reasons why eukaryotic cells divide and replicate through mitosis

Answer 1

To produce new body cells for growth and healing.

Question 2

What are somatic cells?
Examples?

Answer 2

Somatic cells are cells of the body

Ex: skin, brain, heart, stomach and bones

Question 3

What is interphase?

Mitosis

Answer 3

Preparation of division

Question 4

What is cytokinesis?

Mitosis

Answer 4

division of a cell at the end bringing the seperation into two daughter cells.

Question 5

What is a chromosome, centromere, and kinetochore?

Answer 5

Chromose is packaged and structured DNA molecule
Centromere holds the two sister chromatids together
Kinetochore attaches sister chromatids to spindle fibers

Question 6

Describe how divided chromosomes migrate to opposite ends of the dividing cell

Answer 6

They are pulled by spindle fibers attached to kinetochore regions

Question 7

Humans have how many chromosomes?

Answer 7

46

Question 8

PMAT

Answer 8

Prophase, Prometaphase, Metaphase, Anaphase and Telophase

Question 9

Anaphase “Away”

Answer 9

chromosomes move away and pulled to opposite poles

Question 10

Telophase “T for Two”

Answer 10

Two identical cells of 46 chromosomes

Question 11

Mitosis goal

Answer 11

make identical cells

Question 12

Metaphase M for “middle”

Answer 12

chromosomes line up along middle of cell

attached to chromatids