00:02
This question is asking which term from the key relates to how the environment may influence the phenotypic distribution of a trait.
00:15
So the key point to focus on here is the phenotypic distribution.
00:23
So when we think about a distribution, you should think about this bell curve, which displays the distribution of traits.
00:35
So this would be the average right in the middle, population average.
00:44
And then we have to think about a continuous trait.
00:47
So you can maybe one of the simplest examples to think of is height and this is actually an example of a polygenic trait.
01:07
Polygenic trait, where numerous genes have an influence on the trait.
01:21
We actually don't understand all of the genes contributing to height, but there are tens, if not hundreds of genes that eventually determine your height...