00:01
Hi, when we cross purple, which gene is capital a, capital a, small b, small b, this is purple, cross with sepia, sepia, which gene is small a, small a, capital b, capital b, then we get capital a, capital a, capital b, small a, capital b means red in f1 generation, f1 generation.
00:30
And when we interbreed them, interbreed, we get in f2 generation, that is, a capital b equals to 9, means 9 red.
00:48
And a small b, small b, 3 means purple, and small a small a capital capital b, 3, sepia, and small a, small a capital b, 3 sepia, and small a, small a small b small b one white one white so the null hypothesis null hypothesis hypothesis hypophysis a and b gene show independent assortment a and b gene show independent assortment so the phenotype observation we make a table with the phenotype observation observation expectation.
01:39
So for the red phenotype, the observed is 444, that is 9 upon 16 into 791, equals to 4 .4 .9 approximately 445.
01:58
And according to this formula, we get 0 .0022.
02:05
For the cpr, the observe are 201 and expected are 3 upon 16 into 791 equals to 148 and according to this formula we get 18 .97.
02:26
4 purple 4 purple we get 146 and 3 upon 16 into 7991 so it is equal...