Mitoz va Meyoz (2n LI organizmda)

n1c holatda allel genlarni

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mit. mey

1n1c holatda allel genlarni faqat bittasi bo`ladi MASALAN: aBcd va hakoza yoki AbCD va hakoza

IZOH:Chunki har bir xromosomalar bittadan bo`lib ular tarkibda faqat bittadan DNK bor

2. 1n2c holatda allel genlar hamisha ikkitadan holda bo`ladi.

Agar Krossingover bo`lgan bo`lsa u holda allel genlar gomozigota yoki geterozigota holatda bo`ladi yani aaBBcc yoki AaBbCc

Agar Krossingover bo`lmagan bo`lsa holda allel genlar faqat gomozigota holatda bo`ladi

Chunki 1n2c holda bitta xromosomada ikkita DNK bo`lib ularini birinchisi reduplikatsiya natijasida ikkinchisini hosil qilgan

3. 2n2c holatda allel genlar ikkitadan bo`ladi geterozigota yoki gomozigota AA yoki aa yoki Aa

4. 2n4c holatda allel genlar to`rtadan bo`ladi AAaa yoki AAAA yoki aaaa

Xulosa hujayradagi allel genlar nechtadan ekanligini bilishda xc c oldidagi songa e`tibor beriladi yani 1c bo`lsa allellar soni 1 ta; agar 2c bo`lsa
allellar soni 2 ta ;agar 3c bo`lsa 3 ta va hakozo

Tuzuvchilar:Nishonov Ibrohim
Karimov Ismoil

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