cell division

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Cell division

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43 Terms

1

Cell division

the division of a cell into two daughter cells with the same genetic material.

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2

Asexual reproduction

  • creates new life on its own with the exact same copy DNA. could be multicellular or single cellular.

  • When multicellular it reproduces to repair itself. Is found in both prokaryotic and eukaryotic organisms.

  • Bacteria reproduces by binary fission

  • Kalanchoe plants from from plantlets

  • Hydras reproduce by budding

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3

Sexual reproduction

takes 2 things to create new life with a mix of DNA from both.

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4

Chromosome

makes it possible for to separate the DNA during cell division

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5

DNA

Deoxyribonucleic acid

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6

Mitosis

a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus

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7

meiosis

a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus

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8

Plantlets

a small or young plant

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9

budding

a form of asexual reproduction in which a new individual develops from some generative anatomical point of the parent organism.

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10

binary fission

asexual reproduction by splitting into 2 new bodies

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11

Chromatid

each strand of duplicated chromosome

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12

Centromere

the area where each pair of chromatids is joined

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13

Centrioles

tiny structures located in the cytoplasm of animal cells that help organize the spindle

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14

Spindle

a fanlike microtubule structure that helps separate the chromatids

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15

prophase

Spindle fiber formed, d chromosomes are visible, and the nucleus disappears

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16

Metaphase

centered chromosomes , fibers attach at the centromere

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17

Anaphase

separate d chromosome move to the opposite side

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18

Telophase

New nucleus is formed

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19

cancer

A term for diseases in which abnormal cells divide without control and can invade nearby tissues

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20

histone porteins

A histone is a protein that provides structural support for a chromosome.

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21

as a cell grows it demands more of what?

DNA

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22

where is the cells biological information stored?

In the DNA

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23

how does food, water and oxygen enter the cell

through the cell membrane

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24

how is the rate at which cells take in materials effected

depending on the surface area of the cell

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25

when does a cell decide if it needs to split

when it becomes to large and can’t make enough DNA

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26

what are chromosomes

genetic material passed from one generation to the next

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27

when nucleosomes interact with one another what happens

they form coils and super coils that are made up of chromosomes

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28

where is the DNA found in prokaryotic cells

in the cytoplasm

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29

what fazes do eukaryotic cells use

g1,s,g2,m

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30

what happens in the G1 stage

cells increase in size and synthesizes new proteins and organelles

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31

what happens in the s stage

DNA is copied

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32

what happens in the G2 phase

preparing for mitosis and finishing any other molecule that may not be there

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33

what happens during the M phase

mitosis

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34

what is mitosis

a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus

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35

what happens in metaphase 1

centered chromosomes , fibers attach at the centromere (not identical)

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36

what happens in prophase 1

Spindle fiber formed, d chromosomes are visible,chromosomes crossing over, and the nucleus disappears

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37

what happens in anaphase 1

separate d chromosome move to the opposite side, the spindle pulls homologous pairs apart

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38

what happens in telophase 1

nucleus reappears

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39

what happens in cytokines 1

2 new cells are made

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40

diploid

2N=8(46)- 2 complete sets of chromosomes

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41

haploid

N=4(23)- one complete set of chromosomes

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42

how does prophase 2 differ from prophase 1

chromosomes appear as two chromatids

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43
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