Cell Divisions Flashcards

1
Q

Mitosis

A

cell division that produces two diploid cells (clones) for growth and regeneration

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2
Q

Interphase

A

Resting and growth period

Contains S phase where the cell doubles up on every chromosome through a process called DNA replication

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3
Q

DNA replication

A
DNA double helix uncoils
DNA strands are separated momentarily from each other while enzymes
DNA polymerase (enzyme) makes a copy of each strand of DNA by pairing complementary nucleotides to original strand 
Process produces a copy of the DNA double strand when the cells divide each daughter cell receives a copy
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4
Q

Phases of Mitosis

A

Prophase
Metaphase
Anaphase
Telophase

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5
Q

Prophase

A

Chromatin condense into chromatids that can be seen under a light microscope

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6
Q

Metaphase

A

Chromatids are lined up in the middle of the cell

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7
Q

Anapahse

A

Chromatids are split into two halves (each now called a chromosome)
Halves are pulled to opposite ends of the cell

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8
Q

Telophase

A

Chromosomes uncoil back into threads of chromatin

A nuclear envelope encircles the chromatin

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9
Q

Cytokinesis

A

Where the cytoplasm divides after mitosis

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10
Q

Meiosis

A

Makes cells with half the number of chromosomes
Produce games
1 diploid cell splits into 4 haploid cells
Two phases

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