cell reproduction

Question 1

process by which a cell divides to form two new cells( daughter cells)

Answer 1

cell division

Question 2

three types of cell division/ cell reproduction

Answer 2

binary fission
mitosis
meiosis

Question 3

Is a form of cell division in prokaryotic organisms that produces identical offspring

Answer 3

binary fission

Question 4

cell or organism growth… replacement or repair of damaged cells

Answer 4

mitosis

Question 5

formation of sex cells or gametes

Answer 5

meiosis

Question 6

why do cells divide

Answer 6

DNA overloud
reproduction
Exchange of materials
tissue repair
growth
replication of genetic materials

Question 7

if cells grow without limit, an “information crisis” would develop
DNA cannot serve the needs of the increasing size of cell

Answer 7

DNA overload

Question 8

food and oxygen have to cross membrane very quickly
waste must go out
if cells is too large this occurs too slowly and cell will die

Answer 8

exchange of materials

Question 9

prokaryotic cell division

Answer 9

binary fission

Question 10

eukaryotic cell division

Answer 10

meiosis
mitosis

Question 11

3 main steps of binary fission

Answer 11

DNA replication
Chromosome segregation
Cytokinesis

Question 12

DNA is copied resulting in 2 identical chromosomes

Answer 12

DNA replication

Question 13

2 chromosomes separate, move towards ends(poles) of cell

Answer 13

chromosome segregation

Question 14

cytoplasm divides forming 2 cells

Answer 14

cytokinesis

Question 15

each new daughter cell is_____ to parent cell

Answer 15

genetically identical

Question 16

The cell Cycle has 3 phases

Answer 16

G1 Phase, S phase, G2 phase

Question 17

G1 phase is

Answer 17

Cell growth

Question 18

S phade is

Answer 18

DNA REPLICATION

Question 19

G2 phase is

Answer 19

Preparation for replication

Question 20

Cell increases in size

Answer 20

G1 phase

Question 21

Replication of chromosomes

Answer 21

S phase

Question 22

Organelles double
New cytoplasm forms
All other structures needed for mitosis form

Answer 22

G2 phase

Question 23

DNA containing cells genetic code

Answer 23

Chromosomes

Question 24

Each chromosomes has a matching pair

Answer 24

Homologous pair

Question 25

During interphase each chromosomes _____

Answer 25

Copies itself

Question 26

DNA found on chromosomes located in____

Answer 26

Nucleus of cell

Question 27

Cell cycle continues process

Answer 27

Cells grow DNA replicated Organelles duplicated Divide to form daughter cells

Question 28

2 main steps kf eukaryotic cell division

Answer 28

Mitosis Cytokinesis

Question 29

4 steps of mitosis

Answer 29

Prophase Metaphase Anaphase Telophase

Question 30

Cytoplasm divide forming 2 cells

Answer 30

Cytokinesis

Question 31

Nuclear division

Answer 31

Mitosis

Question 32

Mitosis is followed by____

Answer 32

Cytokinesis

Question 33

Process that divides cell nucleus to produce two new nuclei each with a complete set of chromosomes (continues process)

Answer 33

Mitosis

Question 34

Chromosomes visible(sister chromatids) Nuclear membrane disappears Spindle forms

Answer 34

Prophase

Question 35

Centrioles migrate to the poles

Answer 35

In animals

Question 36

Chromosomes line up on the equator of the cell Spindles attach to centromeres

Answer 36

Metaphase

Question 37

Sister chromatids separate Centromeres divide Sister chromatids move to opposite poles

Answer 37

Anaphase

Question 38

Chromosomes uncoil chromatin Nuclear membrane reform Spindle disappears

Answer 38

Telphase

Question 39

Occurs at end of mitosis Division of cytoplasm to form 2 new daughter cells Organelles are divided

Answer 39

Cytokinesis

Question 40

Control the cell cycle at checkpoints

Answer 40

Cyclins

Question 41

Decides whether or not cell will divide

Answer 41

G1 checkpoint

Question 42

Determines if DNA has been properly replicated

Answer 42

S checkpoint

Question 43

Ensures chromosomes are aligned at mitotic plate

Answer 43

Mitotic spindle checkpoint

Question 44

Result of uncontrolled cell division of cells that has lost ability to regulate cell cycle

Answer 44

Cancer cell

Question 45

Reproduce more rapidly than normal cells

Answer 45

Cancer cells

Question 46

MAsses formed called

Answer 46

Tumors

Question 47

5 phases of cell cycle

Answer 47

First growth phase (G1) Synthesis phase (S) Second growth phase (G2) Mitosis Cytokinesis

Question 48

Division of the cytoplasm

Answer 48

Cytokinesis

Question 49

Cell cycle is controlled through

Answer 49

Feedback mechanism

Question 50

Chromosomes contain

Answer 50

Genetic information

Question 51

Cells must divide for

Answer 51

Growth Repair of tissue Asexual reproduction

Question 52

Mitosis occurs in____

Answer 52

Somatic or body cells

Question 53

Examples of mitosis occur in somatic

Answer 53

Liver Heart Skin Stomach

Question 54

How many chromosomes does human have

Answer 54

46

Question 55

Haploid of chromosomes

Answer 55

23

Question 56

Diploid means

Answer 56

2 sets or 2N

Question 57

XX

Answer 57

Female

Question 58

XY

Answer 58

Male

Question 59

Meiosis occurs in

Answer 59

Sex organs

Question 60

Males sex organs are the

Answer 60

Testes

Question 61

Females sex organs are the...

Answer 61

Ovaries

Question 62

Meiosis in male produces

Answer 62

4 sperm

Question 63

Meiosi n female....

Answer 63

Produces 4 egg cells but 1 is viable the other 3 are polar bodies

Question 64

They gave up their cytoplasm to nourish the 1 good egg

Answer 64

Polar bodies

Question 65

Egg and sperm are called

Answer 65

Gametes

Question 66

Other name of body cells

Answer 66

Somatic

Question 67

Meiosis occurs in male..

Answer 67

Beginning at puberty

Question 68

When meiosis occurs in female

Answer 68

Before birth and the egg mature in puberty

Question 69

Fertilized eggs

Answer 69

Zygote

Question 70

Zygote develops in

Answer 70

Embryo and form into an adult by mitosis

Question 71

Process by which an egg and sperm unite

Answer 71

Fertilization

Question 72

Organism in early stage of development

Answer 72

Embryo

Question 73

Homologous chromosomes pair up

Answer 73

Before 1st cell division

Question 74

Homologous chromosomes

Answer 74

Look alike Code for same traits Receive one from each parent

Question 75

Homologous chromosomes exchange genes during...

Answer 75

Crossing over

Question 76

Homologous chromosomes separate during

Answer 76

2nd division of meiosis

Question 77

Crossing over increases

Answer 77

Genetic variation

Question 78

No crossing over cause...

Answer 78

Daughter cells are identical to parent cells

Question 79

Crossing over occurs cause....

Answer 79

Genetic variation

Question 80

What kind of cells? Of meiosis and mitosis

Answer 80

Mitosis: Somatic cells (body cells) Meiosis: sex cells or gametes

Question 81

When does this occur? Meiosis mitosis

Answer 81

Mito: any time Mei: male puberty Female before birth but mature in puberty

Question 82

Number# of division of mito and meio

Answer 82

Mito: 1 Meio: 2

Question 83

# of daughter cells in mito meio

Answer 83

Mito: 2 Meio: 4 male 1 viable in female

Question 84

# of chromosomes mito meio

Answer 84

Mito: same as parent cell diploid 46 Meio: half pf parent cell haploid 23

Question 85

Type of reproduction of mito meio

Answer 85

Mito: Asexual Meio: Sexual

Question 86

Genetic composition of mito meio

Answer 86

Mito: daughter cells identical Meio: daughter cell not identical

Question 87

Pairing of homologous chromosomes mito and meio

Answer 87

Mito: no pairing Meio: yes crossing over of genes

Question 88

Function or importance mito and meio

Answer 88

Mito: growth repair Meio: reproduction of sex cells