meiosis Flashcards

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1
Q

interphase

A

Cell in normal non-dividing condition with chromosomes long and thread-like

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2
Q

early prophase 1

A

Chromosomes contract, becoming more clearly visible. Nucleolus shrinks

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3
Q

mid prophase 1

A

Homologous chromosomes come together (synapsis) forming a bivalent

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4
Q

late prophase 1

A

Each chromosome seen to consist of a pair of chromosome

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5
Q

metaphase

A

Chromosomes arrange themselves on equator of spindle

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6
Q

anaphase 1

A

Homologous chromosomes part company and migrate to opposite poles of the cell

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7
Q

telophase 1

A

The chromosomes have reached their destination and the cell constricts across the middle as in mitosis

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8
Q

metaphase 2

A

Chromosome arrange themselves on the spindle in the usual way

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9
Q

prophase 2

A

2 daughter cells prepare for the second meiotic division : centrioles have replicated and a new spindle is formed

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10
Q

anaphase 2

A

Chromatids part company and migrate to opposite poles of the cell

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11
Q

telophase 2

A

Cell constricts across the middle and the nuclear membrane and nucleoli are reformed as at the end of mitosis
Chromosomes regain their threadlike form and the cells go into the resting phase (interphase)

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