00:01
In which ways is dna different from rna? a, rna molecules are longer.
00:06
B, dna has thymine.
00:08
Rna has uricil.
00:10
C, dna has more different kinds of bases.
00:13
D, dna is a nucleic acid, rna isn't.
00:17
Or e, rna has an additional oxygen atom on the ribose sugar.
00:22
Okay, so dna is kind of a storage molecule.
00:26
So if we look at a, this is not true.
00:28
Because an rna molecule is based on a tiny piece of a chromosome.
00:34
So the dna that makes up the chromosome has many, many genes on.
00:40
So the rna is only from a single gene.
00:43
So rna is copied from a tiny portion of a dna molecule.
00:50
Okay.
00:51
B, so this is a difference.
00:54
Let's have a look at the basis that you'll find in each.
00:57
So in dna, you have cytosine, guine, adeline, and thymine.
01:03
In rna, you have cytosine, whine, adeline, and uracil.
01:09
So the difference between them is that dna has thymine, rna has uracil.
01:14
So c isn't true...