Summary
OCR A-Level Biology Cellular Control(2) Summary
Handwritten Summary by an Oxford Medical Student which covers all content necessary for an A* in Cellular Control at OCR Biology A-Level.
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Post-translational Control :Addition of non-protein groups Folding/shortening of proteins
·
.
modification of amino acids Modification
by CAMP .
Homeobox Genes 180 bases that :
code for a homeodomain protein
↳ Hox Genes specific to animals and appear in the order
39
genes that are
:
in which
they are expressed
Somites Segments directed by hox genes to develop in a particular
way
:
Radial No sides
Symmetry left/right only a top and bottom
:
,
Bilateral Have and
Symmetry a head/tail
left/right
:
mitosis Creation of cels to cause
growth
:
Apoptosis Programmed cen death to sculpt tissues
:
.
↳ May produce to prompt mitosis/cel reformation
signals
Factors that affect the expression of
regulatory genes
:
Stress Condition produced When a homeostatic balance is
·
upset
:
.
↳ External B internal
Changes
Theory of recapitulation :
Oncology mimics
embryonic ontology
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