00:01
So for this question, we are being asked several things, but first we're being asked whether or not the serotonin transporter gene is a quantitative trait locus.
00:13
So for a, here we're being asked whether or not this qtl, a quantitative trait locus, if that's what the serotonin transporter gene is.
00:26
So are they related? and the answer is yes, the gene does seem to be associated with neuroticism.
00:36
Not by much, but just a little.
00:39
So it's not a huge effect.
00:41
But that's what we're looking for.
00:42
You're looking for some kind of association, some kind of statistical effect between a particular locus and the trait.
01:05
So in this case, neuroticism.
01:07
Since there is some kind of effect, it's a little, it's a minor effect, but it's an effect that does tell us that it's a quantitative trait.
01:16
For b, we are asked, can we say that the serotonin transporter gene is a gene for neuroticism, which i'm sure is very tempting? and the answer is probably no, we should not do that.
01:33
And the reason is that neuroticism, depending on how you measure it, certainly, but it's going to be affected by many genes.
01:43
And it's also going to be affected, of course, by the environment.
01:47
A person, you know, you could easily imagine to have identical twins.
01:51
And if they're raised separately, one in a very positive reinforcing environment, the other one in a much more conflicted environment, you can see that neuroticism might differ in those two people.
02:00
So gene phrenazin is affected by, many genes...