00:01
Okay, so the question here is, which of the following shares identical codes? it shares the same genetic code.
00:06
The answer is identical twins.
00:09
Okay? so the reason for this is when conception occurs, we still have one egg, right? and then, let's see if i can draw this properly in one sperm.
00:32
The sperm delivers the dna to the egg, and we have a fertilized egg.
00:36
Right before it gets to before the embryo so uh i guess we'll draw in a different color to just indicate this is different so we now have an embryo okay now before the embryo gets implanted into the womb right before not after before because it can't after it's after it attaches to the womb then it goes to the process of becoming a blastocysts and then essentially the process of development, right? so the embryo is actually split before it gets to the womb.
01:21
So right, before it gets to the womb, it becomes two cells.
01:35
And i guess i'll draw the, i'll be a little more anatomically correct to what an embryo looks like.
01:45
Right, so after fertilization, the single cell starts dividing into multiple cells, but still within the boundary.
01:50
Of the egg, right? it becomes two cells, the embryo splits.
02:21
So embryo splits.
02:28
And this is then implanted into the womb, right? so then it goes to the lining of the womb.
02:38
So you have two cells there.
02:44
You know what? i think i'm mistaken, actually.
03:01
There are instances in which the cells can split, the embryo can split after it is implanted in the womb...