00:01
So for this question, we are jumping into discuss cancer, specifically in the human context, which no one is a stranger to cancer.
00:08
I'm sure everyone has had some sort of instance or know someone that has some experience in relation to them with cancer.
00:17
So it's a bit of a heavy topic, but a very important one.
00:20
And we do know a lot about cancer, although there is still a lot to be discovered as far as clinical treatment and these sorts of things.
00:28
But we do understand a lot about how it arises in certain mechanisms that go into play.
00:35
But when we're talking about cancer, it is certainly a genetic disease.
00:39
And we're talking about genetics.
00:40
We're talking about essentially, think, nucleic acids and the different processes that they undergo.
00:47
This is going to be the key, the undermining thing for understanding this question.
00:52
So what we're looking at is which of the statements are true in regarding to human cancer? so answer option a are caused by viruses.
01:03
So is this true? so we're talking about most.
01:08
And let me just write that in parentheses.
01:11
So not only does it have to be true, but it has to be applicable to most cases of cancer that we can find in humans.
01:18
So viruses can certainly cause human cancer.
01:24
But are most caused by viruses? turns out this isn't true.
01:27
There are some mechanisms how this can be the case, how they can cause some sort of mutation.
01:31
Right, because viral dna can, you know, infect host cells and then cause differences in genetic replication, transcription, mitosis, these sorts of things.
01:43
But that's not the main culprit.
01:44
They're not the main culprit.
01:46
I'll just leave it at that.
01:48
So now are in blood cells or their precursors.
02:07
So let's just write the rest of these out really quickly.
02:09
Then we can get in a nice discussion and try and determine what makes the most sense.
02:15
So this, well, let's just go through this.
02:17
As we're going, actually.
02:18
It makes a lot of sense.
02:19
So is this true for most? no.
02:23
So there are certain cancers where this can be found in blood cells.
02:26
Essentially, we're thinking of leukemia, these sorts of things, and we can find these some precursors as well.
02:31
But is this applicable to most? not in this.
02:35
No.
02:37
It just isn't.
02:38
So c involves mutations of somatic cells.
02:41
So somatic, we're just thinking body.
02:43
That's what soma is indicating...