00:01
Hello, this is biology instructor nicole.
00:03
Let's take a look at your question you posted here and i've copied and paste it because the way it is presented is significant here.
00:09
And i think that might be what would lead to some difficulty in answering it.
00:14
So the statement is the alternating five -sided and po representing phosphorus and oxygen.
00:26
That's going to be an important clue.
00:28
So i'm just going to remind us phosphorus.
00:31
For us and oxygen containing okay so let's read this all again the alternating five -sided and phosphorus oxygen containing molecular groups making up the backbone of each strand of dna are respectively and our options are sugar and nitrogen containing phosphate phosphate and nucleotide sugar and phosphate phosphate and nitrogen containing base sugar and nucleotide so what are our two ands? here's our and here.
01:08
So our ands, we're looking at the five -sided group.
01:15
So a five -sided molecular group, a five -sided molecule, and a po, phosphorus oxygen -containing molecule or group.
01:37
Okay, so that's important to be able to identify those two things out of the question, and five -sided molecular group is what they're saying, and a phosphorus oxygen -containing molecular group.
01:53
So respectively, so we want them in this correct order...