Chapter 8 Cell division Review 1 This spot

Chapter 8 Cell division Review 1

This spot that holds the 2 chromatid copies together is called a ___________ The phase of the cell cycle in which cells stop dividing all together. 2

Cell division in bacteria cells is called Binary fission ____________ Phase of the cell cycle in which DNA is copied 3

The proteins that control the cell cycle cyclins Phase of the cell cycle in which the nuclear membrane is present and DNA is spread out into chromatin. 4

Type of cell division in eukaryotic cells that results in 2 identical daughter cells. List the phases of mitosis in order starting with prophase. 5

Phase of mitosis that follows anaphase Phase of the cell cycle that follows G 2 6

This network of fibers that attach and pull the chromosomes apart is called the mitotic _______ This cell is in _________ 7

G 1, S, and G 2 make up this phase of the cell cycle. Area near the nucleus that contains the centrioles and helps to organize spindle formation _______ 8

The place in the cell membrane of an animal cell that pinches in during cytokinesis is called a __________ Plant cells can’t pinch to divide, instead they form a ________ to divide. 9

This phase of the cell cycle is _______ Part of interphase in which the cell grows to mature size and carries out its job. 10

Phase of mitosis that follows prophase Phase of the cell cycle that follows S 11

This phase of the cell cycle is ________ Phase of the cell cycle cell’s spend most of their time in. 12

Disorder in which body cells lose their ability to control cell division One of 2 identical arms that make up a chromosome 13

DNA that is all spread out in an interphase nucleus is called ________ Phase of mitosis in which the nuclear membrane and nucleolus disappear and the DNA scrunches into chromosomes. 14

In which part of interphase do cells make the molecules and organelles needed for cell division? The 2 copies of each chromosome are called _______ chromosomes because are the same size, same shape, and carry genes for the same traits. 15

These structures at the poles which attach to the spindle fibers and pull the chromosomes. The cell above is in ______phase 16

When chromatin scrunches together it is called a _________ One of 2 identical arms that make up a chromosome 17

Phase of mitosis that follows metaphase Phase of the cell cycle that follows G 1 18

This cell is in ______ Phase of cell division in which the nuclear membrane returns and chromosomes spread out into chromatin. 19

This cell is in _____ The cell above is a _____ cell. animal plant 20

Substance that causes cancer carcinogen Phase of the cell cycle after S phase in which cells make the molecules and organelles needed for cell division 21

Phase of mitosis in which chromatids separate and move to opposite ends of the cell. The very first dividing phase is ________ 22

Phase of the cell cycle where cells spend most of their time. They grow bigger and they do their job as body cells. List the phases of mitosis in order starting with interphase 23

This is called a Cleavage furrow This cell is _______ cell. an animal a plant 24

Phase of mitosis where the cytoplasm splits into 2 Name the phases of the cell cycle in order starting with G 1 25

Prophase (P) Metaphase (M) Anaphase (A) Interphase (I) Telophase (T) ________ DNA is all spread out as chromatin and nuclear membrane is visible ________ DNA scrunches up and chromosomes are first visible ________ Made up of G 1, S, G 2 ________ Chromosomes line up in middle of 26 cell

Prophase (P) Metaphase (M) Anaphase (A) Telophase (T) Interphase (I) ________ DNA is copied and cell prepares to divide ________ Chromatid arms separate and move to opposite ends of the cell ________ Chromosomes unwind into chromatin & nucleus returns ________ Nuclear membrane & nucleolus disappear 27

Prophase (P) Metaphase (M) Anaphase (A) Interphase (I) Telophase (T) _________ Two nuclei are visible _________ First dividing phase __________ Centrosomes containing centrioles & spindle fibers appear next to nucleus _________Cytoplasm is split between two cells _________ Spindle fibers and centrioles disappear 28

S G 1 G 2 G 0 Mitosis (M) Cytokinesis (C) _______ Cell is reading the DNA code and “doing its job” _______ Cell makes a copy of its DNA _______ Cells leave the cell cycle and stop dividing _______ Division of chromosomes happens 29

S G 1 G 2 G 0 Mitosis (M) Cytokinesis (C) _______ Division of cytoplasm happens _______ Cell makes the molecules and organelles needed for cell division _______ Made up of telophase, anaphase, prophase, and metaphase 30

What stage of mitosis is this cell in? 31

What stage of mitosis is this cell in? 32

What stage of mitosis is this cell in? 33

What stage of mitosis is this cell in? 34

What stage of mitosis is this cell in? 35

• The advantage of sexual reproduction and crossing over during Prophase 1 is. 36

• Meiosis takes place in the . • Mitosis results in the formation of identical cells called cells. • Meiosis results in the formation of cells called cells. 37

• All cells in the human body except gametes have chromosomes and homologous pairs. • All cells are diploid. • All gametes are . 38

• In meiosis, each cell divides twice but replication occurs only once producing haploid cells. • During meiosis, when do homologous pairs of chromosomes line up on the equator? 39

• During meiosis, when do homologous chromosomes split apart from each other and move towards opposite poles? • The diploid number is always times the haploid number. 40

• Nondisjuntion occurs during and results in the wrong # of in the gametes. 41

• List 5 differences between mitosis and meiosis. 42

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