رد: كل ماتحتاجونه فـ الأحياء ,, / على مدار الساعه ^_^
في عندي سؤااال في شابتر 3
42)
DNA differs from RNA because DNA
A)
contains thymine in place of uracil.
B)
consists of a single rather than a double polynucleotide strand.
C)
contains the sugar ribose rather than the sugar deoxyribose.
D)
contains phosphate groups not found in RNA.
E)
is always double-stranded, while RNA is never double-stranded.
Answer:
A
طيب لييش الجوااب ما يكووون فقرة E
is always double-stranded, while RNA is never double-stranded
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