00:01
So we want to compare rna and dna as to their structural composition and their function.
00:13
Let's first talk about the differences in their structural composition.
00:20
First of all, dna contains a deoxyribonucleic acid, or is a deoxyribonucleic acid, that having to do with the, so ribose is like that, and rna would have those hydroxyl groups.
00:47
This is the so -called 1 prime, 2 prime, 3 prime, and in dna you have 3 -prime deoxyribose, 2 -prime deoxyribose.
01:04
And the other difference in terms of, chemical composition really is the difference in the basis.
01:18
So both contain adenine, guanine, and cytosine, but where dna contains thymine, rna contains uracil.
01:30
The only difference between thymine and urocile is that thymine has a methyl group that uracil lacks.
01:39
The at and a u -based pairing is the same.
01:43
So in terms of what's in the molecule, that is a big difference.
01:47
Now, in terms of typical chromosomes in cells, dna is double -stranded, each strand being hydrogen bonded to the other strand by way of the base pairing, where typically rna is a single -stranded molecule...