Analyse how mitosis supports growth and repair while meiosis produces gametes with different chromosome-number outcomes in IB Biology HL D2.1.4.
The genome is the total of all the DNA in an organism, containing all the genetic information required for development and growth.
Distinguish between cell division by mitosis and by meiosis in eukaryote cells.
4
Marking guidance:
max
a.
b.
d.
e.
f.
g.
h.
maintains chromosome
maintains chromosome number/diploid;
number/diploid;
;
for growth/repair
;
in somatic cells
;
one division
;
no exchange of genetic material between chromosomes/crossing over;
;
results in two cells
;
only divides chromatids/
chromatids separate during
anaphase
genetically identical
;