Oʻzgaruvchanlik – tirik organizmlarning xususiyati sifatida

Question 1

Ushbu DNK molekulasidan foydalanib transversiya jarayoni ifodalangan javobni aniqlang.
ACC TGA GGC TTA
TGG ACT CCG AAT

Accepted Answer

ACC TGA GCC TTA / TGG ACT CGG AAT

Answer

ACC TGG GGC TTA / TGG ACC CCG AAT

Answer

ACC CGA GGC TTA / TGG GCT CCG AAT

Answer

ACT TGA GGC TTA / TGA ACT CCG AAT

Question 2

Fenotipik o‘zgaruvchanlikni aks ettiruvchi misollarni aniqlang.
1) ultrabinafsha nurlar ta’sirida odam terisida melaninning to‘planishi;
2) qayin odimchisi kapalagi oq formalarini o‘zgarib qoramtir rangli formalarining paydo bo‘lishi;
3) odamlarda barmoqlarning kalta bo‘lishi;
4) suv yong‘og‘ida suv osti va suv ustidagi barglari shaklining har xil bo‘lishi

Accepted Answer

1, 4

Answer

2, 3

Answer

1, 3

Answer

2, 4

Question 3

Ontogenetik o‘zgaruvchanlikni aniqlang.
1) jigar qurti kiprikli lichinkasining dumli lichinkaga aylanishi; 2) odamda braxidaktiliya holati; 3) apollon kapalagi lichinkasida og‘iz apparatining o‘zgarishi; 4) mushuk barmoqlarining ayri bo‘lishi.

Accepted Answer

1, 3

Answer

1, 4

Answer

2, 4

Answer

2, 3

Question 4

Qaysi kasallik meyoz jarayoni anafaza I davrida jinsiy xromosomalarning qutblarga teng taqsimlanmasligi natijasida kelib chiqadi?

Accepted Answer

“Shereshevskiy-Terner sindromi”

Answer

mikrotsefaliya

Answer

“Daun sindromi”

Answer

albinizm

Oʻzgaruvchanlik – tirik organizmlarning xususiyati sifatida

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