Meioza Flashcards

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1
Q

Ce este meioza?

A

tipul de reproducere indirecta a gametilor , celulelor sexuale

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2
Q

Ce inseamna haploid?

A

set cromozomial injumatatit (n)

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3
Q

Ce nr de diviziuni succesive au loc in meioza

A

2 meioza 1- reductionala, si meioza 2- ecuationala

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4
Q

Cat poate dura profaza 1?

A

pana la cateva saptamani

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5
Q

Ce are loc in profaza 1?

A

crossing-over

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6
Q

Ce este crossing-over?

A

variabilitatea ereditara combinativa

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7
Q

Ce are loc in anafaza 1?

A

cromoxomii bicromatici migreaza spre poli

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8
Q

ce se formeaza in telofaza 1?

A

2 celule crossovere

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9
Q

ce se intampla in anafaza 2?

A

cromozomii monocromatici migreaza spre poli

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10
Q

ce se formeaza in telofaza 2?

A

4 celule haploide

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11
Q

care este importanta meiozei?

A

asigura variabilitatea ereditara so formeaza gameti haploizi

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12
Q

Asemanari dintre mitoza si meioza?

A

Tipuri de diviziune indirecta, pana la diviziune are loc interfaza, se intalnesc si la plante si la animale

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13
Q

Care sunt deosebirile intre meioza si mitoza?

A

Nr de diviziuni succesive, tipuri de celule formate, nr. de celule formate, crossong-over, importanta

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