9700/13 Biology Oct Nov 2022 Online Test | Cambridge AS and A Level MCQ
CIE
AS & A Level
Biology (9700)
بهمن
2022
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
75 دقیقه

پیش نمایش صفحه اول فایل
In eukaryotes, the chromosomes become shorter and thicker during mitosis. The thickening may be increased by molecules called protamines.
The protamines replace part of the structure of the chromosome.
Which part of the chromosome is replaced by protamines?