1
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Keçən videoda analarımızdan

2
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bir yumurtanın atamızdan
gələn sperma ilə birləşərək

3
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təkrarlanaraq bizə çevriləcək bir ziqot

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əmələ gətirdiyini gördük.

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Son videomuzda deyək ki, bu,
atamın sperması idi

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və anamın yumurtası ilə birləşdi və sonra

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bu ziqot təkrarlanmağa davam edəcək

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və sonunda Sal-a çevriləcək,

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və mayalanma haqqında video hazırlanacaq.

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Bəs əslində bu necə olur?

11
00:00:29,306 --> 00:00:31,775
Beləliklə, indi bu ziqotda

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xromosomların diploid sayı var və

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bir daha bunu 2N adlandırırlar,

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burada N haploid ədəd,

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2N diploid ədəd,

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insanlar üçün isə,

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N 23-dür, buna görə insan vəziyyətində

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N 23-dür və iki dəfə N əlbəttə ki,

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46 xromosom olacaqdır.

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Burada mənim tam 
xromosom kontingentim var.

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Mən atamdan Y cinsi xromosom aldım,

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X təbii ki anamdan,

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ona görə də kişi olacağam.

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Bəs onda nə baş verir?

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Yaxşı, indi mitoz yolu ilə bu ziqota

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təkrarlanmağa davam edəcək.

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Beləliklə, bilirsiniz, birdən sonra,

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birdən sonra və biz mitozun mexanikasının

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təfərrüatlarına girəcəyik,

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lakin bir dövr mitozdan sonra o, 
indi iki hüceyrə olur.

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İndi iki hüceyrədir.

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Mən onu bir daha çəkəcəyəm,

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onu miqyasda çəkməyəcəm.

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İndi iki hüceyrədir.

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Buradakı kiçik lövhəmdə kifayət qədər

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boşluq olduğuna əmin olmaq istəyirəm.

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Onun iki hüceyrəsi var.

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Bütün xromosomları çəkməkdənsə,

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deyim ki, bunların hər biri,

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mənim nüvəmdə hələ də 2N var.

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Mənim diploid sayım var.

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Deməli, fərqləndirdiyi bu iki

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hücüyrənin hər biri tam

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gözlənilməzliyə malikdir.

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Mitozun etdiyi də budur.

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O, mahiyyətcə bütün
hüceyrələri təkrarlayır.

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Eyni sayda xromosomunuz var.

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