Cell Division

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

blank

Back 8

blank

Front 9

____________ ______________________ is the process by which cells reproduce.

Back 9

Cell division

Front 10

________________ __________________is the process of cell division in prokaryotes.

Back 10

Binary fission

Front 11

_______________________ is the process of cell division in eukaryotes

Back 11

mitosis

Front 12

Mitosis results in 2 new cells with genetic material that is _______________________ to the genetic material of the original cell.

Back 12

identical

Front 13

Mitosis occurs in organisms undergoing _____________________, _______________________, ______________________, or ________________________ ____________________________________.

Back 13

growth, development, repair, or asexual reproduction

Front 14

________________________ reproduction is the production of offspring from one parent.

Back 14

Asexual

Front 15

One example of asexual reproduction is _____________________ ____________________ seen in bacteria

Back 15

binary fission

Front 16

The _____________ ___________________ is the repeating set of events in the life of a cell.

Back 16

Cell cycle

Front 17

The time between cell division is called ______________________________

Back 17

interphase

Front 18

_________________________________ consists of three phases:

a). __________________ of the cell

b). ___________________________ of the DNA (synthesis)

Back 18

Interphase, growth, replication

Front 19

Mitosis is the division of the ____________________, which occurs during cell division.

Back 19

nucleus

Front 20

Mitosis is divided into stages:

Back 20

Prophase, metaphase, anaphase, and telephase

Front 21

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

Back 21

2

Front 22

_________________________ is the first phase of mitosis.

a) Chromatin condenses to form __________________________.

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

c) In animal cells, cylindrical bodies called centrioles appear which produce ______________________ _____________________.

Back 22

prophase, chromosomes, disapear, spindle fibers

Front 23

blank

Back 23

blank

Front 24

_________________________ is the 2nd phase of mitosis.

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

Back 24

metaphase, centromere

Front 25

blank

Back 25

blank

Front 26

The third step of mitosis is _______________________.

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

Back 26

Anaphase, oppisite

Front 27

blank

Back 27

blank

Front 28

The fourth step of mitosis is __________________________.

a) The spindle fibers disassemble

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

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

Back 28

Telophase, chromatin, nuclear

Front 29

blank

Back 29

blank

Front 30

During _____________________________ in animal cells, a ______________________ ____________ pinches in and eventually separates the dividing cell into two cells.

Back 30

cytokenisis, contractile ring

Front 31

In plant cells, a ___________ ________________ separates the dividing cell into two cells.

Back 31

cell plate

Front 32

blank

Back 32

blank

Front 33

Cell division in eukaryotes is controlled by ______________________ called cyclins.

Back 33

proteins

Front 34

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

Back 34

cancer

Front 35

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

Back 35

tissue

Front 36

A group of tissues that work together form an ___________________.

Back 36

organ

Front 37

A group of organs that work together form an ________________ ______________________.

Back 37

organ system

Front 38

All of the organ systems together form an ________________________.

Back 38

organism