00:01
All right, so here we are given some information, and the question that we want to know in the end is what is the map distance between the two genes.
00:11
So going back, all right, so we're given two purebreds, meaning that their genotype is going to become as i guess.
00:19
So phenotype is blue shells, long antenna, green cells, short antenna.
00:25
So we're going to assume that these two genes are linked.
00:29
So anytime you see blue shells, you see long antenna.
00:32
Every time you see green shells, you see short antenna, unless there's recombination occurred.
00:37
Okay.
00:38
So we take these two pure breeding different varieties.
00:44
We cross them together.
00:45
We get an f1 with blue shells and long antenna.
00:48
That's how we know that blue shells and long antenna are dominant.
00:53
If we do a cross of the f1s, we are given the following progeny.
00:59
62 blue shell long, 60 green short, 38 blue short, and 38 green long...