Mitosis	Meiosis
a.	occurs in/produces somatic cells	occurs in/produces sex cells
b.	one cell division	two cell divisions
c.	produces two (daughter) cells	produces four (daughter) cells
d.	daughter cells identical to parent cell / does not produce genetic variation	daughter cells differ from parent cell / produces genetic variation
e.	produces cells for growth/repair	produces gametes/for reproduction
f.	chromosome number stays the same/2n/diploid	chromosome number is halved/1n/haploid
g.	pairing of chromosomes does not occur	homologous chromosomes join together/pair
h.	no exchange of material between chromosomes/no crossing over	exchange of material between chromosomes/crossing over

1 mark ribose drawn as a pentagon and labelled;

1 mark base linked correctly (to C1) of ribose and labelled;

1 mark phosphate linked correctly (to C5) of ribose and labelled;

Award [2 max] if more than one nucleotide drawn.

"Sugar" alone is insufficient.

1. Antibiotics can (generally) kill/destroy bacteria 1 mark
2. Some bacteria show variation/antibiotic resistance 1 mark
3. Variation/resistance is due to a random mutation 1 mark
4. Resistant bacteria are not killed/destroyed by the antibiotic 1 mark
   OR
   Bacteria without the mutation die
5. (Resistant) bacteria have a selective advantage / unequal success 1 mark
6. The bacteria with this variation/resistance reproduces/multiplies 1 mark
7. Mutation/gene is passed on to the offspring / the offspring will be resistant to the antibiotic 1 mark
8. Resistant bacteria become more common
9. Bacteria have evolved to be resistant to the antibiotic

Award [6 max] if pathogen is used instead of bacteria throughout the answer with no mention of bacteria

Total 7 marks