Mitosis y Meiosis Flashcards

1
Q

El cigoto es el punto de partida =

A

Embrión mas temprano

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2
Q

División nuclear =

A

cariocinesis

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3
Q

Division del citoplasma=

A

citocinesis

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4
Q

2 formas de cariocinesis (división nuclear)

A
  • mitosis no reduccional
  • meiosis reduccional
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5
Q

Células diploides

A

todos sus cromosomas se presentan en parejas

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6
Q

Células haploides

A

poseen una sola copia de c/cromosoma (gametos)

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7
Q

Cromosomas homomorficos

A

dos idénticos

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8
Q

Cromosomas heteromorficos

A

distinto tamaño/ son diferentes entre si

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9
Q

Mitosis

A

2 células hijas cada una con el material genético idéntico a la cel. parenteral.

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10
Q

Meiosis

A

Su función es formar gametos, el material genético se divide a la mitad.

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11
Q

Espermatogénesis

A

Espermatogonias -> espermatocitos primarios -> sufren meiosis -> espermatocitos secundarios -> 2da div meiótica-> espermátidas -> maduración = 4 espermatozoides

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12
Q

Ovogénesis

A

ovocitos primarios -> ovocito sec. + cuerpo polar -> segunda div meiótica = 1 ovulo y 3 cuerpos polares

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