aqa a level biology mitosisWatch this thread
question 8aiii https://pmt.physicsandmathstutor.com...ll%20Cycle.pdf has me confused
so the mark scheme says that there will be 3 chromosomes
I thought there'd be 4 because there are 4 chromosomes.
if structure a is a centromere, wouldn't the black one on the opposite side be a centromere too? that would mean there'd be 2 chromosomes in the gamete...?
Therefore, this diploid cell has 3 pairs of chromosomes (3 black and 3 white) = 6 chromosomes. Half of 6 is 3 so the number of chromosomes in the gamete will be 3.
Btw the circle in the middle of the sticks is the centromere if you’re getting confused about that...
I hope this helps!