AUG GGC UCA
Is this a strand of DNA or RNA, and how can you tell?
Uracil | SIELC
a
DNA because it has the sugar, Ribose
b
RNA because it has the nitrogen base, Uracil.
c
RNA because it has inorganic phosphate groups
d
DNA because it has the nitrogen base, Adenine
The correct answer is b. RNA because it has the nitrogen base, Uracil.
The presence of uracil instead of thymine is a characteristic feature of RNA. DNA contains the nitrogen base adenine instead of uracil. Therefore, the presence of uracil indicates that the given sequence is a strand of RNA.