Editing Evodevo (section)

== <span style="color: #FFFFFF;">Applying</span> ==
'''Modeling 'The Hox Switch' (Position and Feature):'''
<syntaxhighlight lang="python">
def develop_body_segment(segment_id, hox_gene_active):
    """
    Shows how a 'Switch' determines a body part.
    """
    blueprint = {
        "Hox-A": "Sensory (Antenna/Eyes)",
        "Hox-B": "Locomotion (Legs/Wings)",
        "Hox-C": "Digestion (Organs)",
        "Hox-D": "Reproduction"
    }
    
    part = blueprint.get(hox_gene_active, "Basic Skin")
    return f"Segment {segment_id}: Developing {part}"

# Normal Fly
print(develop_body_segment(1, "Hox-A"))
print(develop_body_segment(2, "Hox-B"))

# Mutant Fly (Hox-B in Segment 1)
print(develop_body_segment(1, "Hox-B")) # Leg grows on head!
# This is a real mutation called 'Antennapedia'.
</syntaxhighlight>

; Evo-Devo Landmarks
: '''The Sonic Hedgehog Gene (Shh)''' → A famous signaling protein that controls the growth of limbs and fingers.
: '''Tiktaalik''' → The "Fishapod" fossil that shows how fish fins were genetically "re-wired" to become land-walking legs.
: '''Darwin's Finches (BMP4)''' → Modern researchers proved that the different beak shapes are caused by a single protein (BMP4) being turned on for different amounts of time.
: '''The Butterfly Wing''' → Showing how the "spots" on wings are built using the same genes that build legs and antennae.
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