Cell Division Notes

Front 1

Between cell divisions, DNA is long and stringy and exists as:

Back 1

Chromatin

Front 2

DNA makes a ____ of itself before cell division

Back 2

Copy

Front 3

In eukaryotes, the DNA wraps around proteins to make a compact structure called a:

Back 3

Chromosome

Front 4

The two copies of DNA make up the two identical halves of chromosomes. Each half is called a:

Back 4

Sister Chromatid

Front 5

The two chromatids are attached at a point called a:

Back 5

Centromere

Front 6

When the cell divides, each of the two new cells will receive one chromatid from each:

Back 6

Chromosome

Front 7

Humans have ____ pairs of chromosomes for a total of _____ chromosomes IN EACH CELL’S NUCLEUS.

Back 7

23 - 46

Front 8

The process by which cells reproduce:

Back 8

Cell Division

Front 9

The process of cell division in prokaryotes:

Back 9

Binary Fission

Front 10

The process of cell division in eukaryotes:

Back 10

Mitosis

Front 11

Mitosis results in __ new cells with genetic material that is _________ to the genetic material of the original cell.

Back 11

2 - Identical

Front 12

Mitosis occurs in organisms undergoing growth, development, asexual reproduction, and ______

Back 12

Repair

Front 13

_______ reproduction is the production of offspring from one parent.

Back 13

Asexual

Front 14

One example of asexual reproduction is ______ _______ seen in bacteria.

Back 14

Binary Fission

Front 15

The ____ ______ is the repeating set of events in the life of a cell.

Back 15

Cell Cycle

Front 16

The time between cell division is called:

Back 16

Interphase

Front 17

Which Stage does this occur:

a). growth of the cell

b). replication of the DNA

Back 17

Interphase

Front 18

Mitosis is the division of the ______ which occurs during cell division.

Back 18

Nucleus

Front 19

Prophase, Metaphase, Anaphase, Telophase

Back 19

Mitosis

Front 20

Mitosis results in _ daughter cells that are genetically identical to the original cell.

Back 20

2

Front 21

Which Stage does this occur:

a) Chromatin condenses to form chromosomes.

b) The nucleolus and the nuclear membrane break down and disappear.

c) In animal cells, cylindrical bodies called centrioles appear which produce spindle fibers.

Back 21

Prophase

Front 22

Which stage does this occur:

a) Spindle fibers attach to the centromere of the chromosomes and move them to the center of the dividing cell.

Back 22

Metaphase

Front 23

Which stage does this occur:

a) The chromatids of each chromosome separate at the centromere and slowly move toward the opposite poles of the dividing cell.

Back 23

Anaphase

Front 24

Which stage does this occur:

a) The spindle fibers disassemble

b) the chromosomes return to a less tightly coiled chromatin state.

c) A nuclear envelope forms around each set of chromosomes, and a nucleolus forms in each of the newly forming cells.

Back 24

Telophase

Front 25

A contractile ring pinches in and eventually separates the dividing cell into two cells. (Animal Cells)

Back 25

Cytokinesis

Front 26

In plant cells, a____ _____ separates the dividing cell into two cells.

Back 26

Cell Plate

Front 27

Cell division in eukaryotes is controlled by ________ called _______.

Back 27

Proteins - Cyclins

Front 28

______ may result if cells do not respond to control mechanisms and continue to divide nonstop.

Back 28

Cancer

Front 29

When the same type of cells normally divide to make a group of cells that perform the same function, they form a:

Back 29

Tissue

Front 30

A group of tissues that work together form an:

Back 30

Organ

Front 31

A group of organs that work together form an:

Back 31

Organ System

Front 32

All of the organ systems together form an:

Back 32

Organism