Mitosis Flashcards Preview

BIO Exam 2 > Mitosis > Flashcards

Flashcards in Mitosis Deck (16)
Loading flashcards...
1

Goal of Mitosis

Cell division for growth and healing

2

Chromosomes

Structures that house the cells DNA

3

Chromatids

Two identical copies of DNA abound at the centromere

4

Spindle Fibers

Direct the movement of chromosomes during cell division; provides cellular structure

5

Cytokinesis

The division in the cytoplasm

6

How do cells know other cells are around?

Receptor proteins stick out of cell membranes grabbing signal molecules from nearby cells.

7

Benign

Tumor that remains at the side of origin; does not have the capacity to spread

8

Malignant

Tumors that do have the ability to invade other tissues, causing tumor growth

9

Metastasis

The spread of cancer cells beyond their site of origin

10

Oncogene

A cancer causing gene; when exposed to carcinogens they become mutated and cancerous

11

Somatic Cells

Diploid; produced during mitosis for growth and repair

12

Gametes

Sperm and egg (sex) cells produced during meiosis; haploid

13

Haploid

Cells with one member of each pair of homologous chromosomes

14

Diploid

Body cells with pairs of homologous chromosomes

15

What happens to the number of chromosomes in mitosis vs meiosis?

The number of chromosomes is unchanged in mitosis; number of chromosomes are cut in half during meiosis.

16

Crossing Over

During Prophase I, homologous chromosomes come together randomly exchanging genetic information; provides genetic variation