My textbook is just a piece of... It doesn't explain anything. :/
It shows a diagram with two paternal homologues and two maternal homologues in Interphase. I know that DNA has been replicated so I know there should be two chromosomes but why is there a maternal and paternal? Am I right in thinking that paternal is sperm and maternal is an ovum? If so, why are they there? :|
Also I'm getting confused between chromosomes, DNA and chromatids.
I know DNA is coiled up in a chromosome, but why does it form that X shape? Is each 'line' of the X meant to each have 23 chromosomes or something?
Ugh, I hate Biology.