00:01
Which of these would you see in a mutation that causes cells to produce effective microtubules? a, all of these, b, none of these, c, reduced sperm motility, d, poor cell support, or e, mucus accumulating in the trachea.
00:21
So the answer is all of these.
00:23
So microtubules are a type of structural filament that is found in a variety of places.
00:31
These.
00:32
C, microtubules are found in flagella, and the sperm cell moves because of its flagellum.
00:41
So if there's a problem with microtubules, there's a problem with a flagellum, and the sperm may be unable to move.
00:47
D, microtubules are one of the filaments that make up the cytoskeleton, along with actin myosin and with the intermediate filaments.
01:00
But if you didn't have microtubules, you would have weakness in the cytoskeleton, and that would be seen as poor cell support, because the cytoskeleton supports the structure of the cell.
01:13
And then we have e...