AQA Biology B2 - Unofficial Mark Scheme

I did , I put it would still contain the diseased allele but I'm not sure if its right


I put testicles instead of testes, same thing right???

i did the same thing its more than likely to be correct because testes and testicles are the same.

For the probability question what if I wrote 1/2 instead of 50%??

You know that question where it asked something like "why dont they use cells from the umbilical cord to treat genetic diseases?' Did anyone else put that these cells would still have the same DNA as the rest of the cells so you cant treat it?

i did the same thing its more than likely to be correct because testes and testicles are the same.

I think its 50%

I wrote the exact same thing for this question, would it get full marks?

I think it is also spelt as testies so if you spelt it like that then yes.

More questions I can remember:
For the stem cells: why is it better to use stem cells from an umbilical cord instead of an embryo?
Why is it better to save a persons stem cells for use on themselves in later life?
Why can't stem cells cure genetic disorders?

Thanks for the great markscheme, let's get it up to all 60 marks of answers. I'll help for the physics and chemistry later this week.

I put BB Bb Bb bb for the genotypes, but gametes are the sex cells, X Y for males and XX for females