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Biosci 107 > Cell division > Flashcards

Cell division Flashcards

1
Q

Somatic cell division

A

division of body cells via mitosis to form identical daughter cells for growth and development

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2
Q

Reproductive cell division

A

Germ cell division via meiosis to form genetically diverse daughter cells

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3
Q

Interphase - G1 phase

A

Duplication of organelles and cytosolic components

Centrosome replication begins

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4
Q

Interphase - DNA synthesis

A

DNA replication begins in nucleus as strands are seperated via hydrogen bonds

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5
Q

Interphase - G2

A

Replication of centrosomes is completed
Checking DNA sythesis

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6
Q

Mitotic phase - Prophase

A

Mitotic spindles formed for alignment while nuclear envelope breaks. DNA condenses from chromosome to sister chromatids

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7
Q

Mitotic phase - Metaphase

A

Chromosomes line up at centre of nucleus via microtubules

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8
Q

Mitotic phase - Anaphase

A

Sister chromatids seperate into seperate sides of the cell

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9
Q

Mitotic phase - Telophase/cytokinesis

A

Cell cleaves to form two daughter cells identical to parents

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10
Q

G1 checkpoint

A

Checks DNA condition, size, and appropriate signals

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11
Q

M checkpoint

A

Checks if chromosomes are bonded to spindles

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12
Q

Meosis

A

Reproductive cell division resulting in geneticaly diverse daughter haploids

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13
Q

Meiosis - Prophase 1

A

Two sister chromatids bond forming a tetrad thus recombination begins in an exchange of genes

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14
Q

Meiosis - Metaphase 1

A

Tetrads line up at nucleus centre

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15
Q

Meiosis - Anaphase 1

A

Tetrads split in half and sister chromatids move to each side of cell

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16
Q

Meiosis - Telophase 1

A

Cell forms cleavage

17
Q

Meiosis - Prophase 2

A

Three sister chromatids on either side of nucleus

18
Q

Meiosis - Metaphase 2

A

Sister chromatids line up at centre

19
Q

Meiosis - Anaphase 2

A

Sister chromatids seperate

20
Q

Meiosis - Telophase 2

A

Each cell splits to form four haploid daughter cells

Biosci 107 (13 decks)

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