Cell Structure Quiz (1) Biology AS Level
Cambridge
AS & A Level
Biology (9700)
فروردین
2010
شامل مباحث:
UNIT 1: Cell structure
تعداد سوالات: 20
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
25 دقیقه
پیش نمایش صفحه اول فایل
omer uner The very large (1000 nm) Pandora viruses found in Chile and Australia are considered to be viruses because they cannot replicate their own genome and cannot make proteins.
They also share essential structural features with other viruses.
What are the essential structural features of viruses?
1- non-cellular
2- protein coat
3- both DNA and RNA
4- either DNA or RNA
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