the.com/phenotype
What genes bragged about, minus what the world actually let through.
means The observable traits an organism actually displays — its visible body, chemistry, and behavior — produced by genes interacting with environment and chance.
from Coined in the early 20th century from Greek 'phainein' (to show, to appear) plus 'typos' (type, stamp, impression) — the same 'phain-' that gives us 'phenomenon.' The term arose alongside 'genotype' specifically to split 'what's written in the genes' from 'what actually shows up in the organism,' a distinction biologists needed once they realized the two don't always match.
- not just looks
- includes behavior, biochemistry, even gut bacteria output
- same genes
- identical twins still diverge under different environments
- formula
- genotype plus environment, interaction term often ignored wrongly
- coined 1911
- by Wilhelm Johannsen, who also invented gene