00:01
Okay, we're going to look at the different types of epistasis that you can have.
00:05
And epistasis is where you have alleles at two separate loci that will influence each other in some way.
00:13
So the first one we're going to talk about is dominant.
00:16
And this is actually the example that was used in the question where dominant at either.
00:24
So any dominant allele equals one specific dominant trait.
00:37
Like any dominant allele, whether it's r or y, might always make red flowers.
00:49
So it always has the same outcome.
00:51
The way that you know you're looking at a dominant epistasis is when most everything is the same.
01:02
It's one phenotype, and there are a few recessive phenotypes.
01:08
Another type is duplicate recessive.
01:13
In duplicate recessive, you have a certain recessive allele that can override a dominant allele.
01:31
So you might have a recessive alleles at one locus that override the dominant of the other locus.
01:42
So the way you know you're looking at duplicate recessive is that there will be one type of.
01:49
Of dominant and one type of recessive because the recessive here overrides the dominant here...