Meiosis Flashcards

1
Q

Replicación de células…

A

gaméticas / germinales

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2
Q

Se le llama cigoto hasta…

A

la implatación

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3
Q

Después de la implatación hasta el nacimiento se le llama…

A

feto

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4
Q

Desde que momento se puede determinar el sexo del feto?

A

desde la cingambia de pronucleos y se manifiesta en la semana 11 o 12

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5
Q

Importancia de la Meiosis…

A

Reproducción sexual
Favorece diversidad
Material biologico epigeneticamente influido
Ventaja competitiva

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6
Q

Define cel diploide

A

Célula que tiene en su núcleo la carga total de la especie

46 cromosomas

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7
Q

Define cel Haploide

A

Célula que en el núcleo tiene la mitad de carga cromosómica

23 cromosomas

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8
Q
Gameto femenino
# de diploides
# de haploides
A

1 diploides

1 haploides

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9
Q
Gameto masculino
# de diploides
# de haploides
A

1 diploides

4 haploides

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10
Q

Que representa la fase M de la div celular durante la meiosis?

A

Meiosis

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11
Q

Proceso de la Meiosis en cuanto a número de cromosomas

A

46 → 92 → (x2) 46 → (x4) 23

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12
Q

Proceso de la Meiosis en cuanto a tipo de células

A

diploide → tetraploide → (x2) diploides → (x4) haploides

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13
Q

Fases de la meiosis

A

Meiosis 1

Meiosis 2

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14
Q

Fases de la Meiosis 1

A
Replicación de DNA
↓
Profase 1
↓
Metafase 1
↓
Anafase 1
↓
Telofase 1 y citoquinesis 1 (2x) 46 cromosomas
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15
Q

Fases de la Meiosis 2

A
Profase 2 - (2x) 46 cromosomas
↓
Metafase 2
↓
Anafase 2
↓
Telofase 1 y citoquinesis 1 (4x) 23 cromosomas
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