Elusive locus of control in biological development: genetic versus developmental programs

Area of Science:

• Developmental Biology
• Genetics
• Molecular Biology

Background:

• The term "genetic program" implies that DNA sequence dictates biological development.
• This concept suggests a pre-written plan for development resides within nucleotide sequences.

Observation:

• Current research indicates developmental "instructions" are not exclusively in DNA.
• These instructions are distributed throughout the fertilized egg, not solely encoded in the genetic material.

Findings:

• The notion of a "genetic program" is based on a category error, conflating "genetic" with "epigenetic" and "program" with "data."
• This conflation incorrectly aligns independent distinctions, leading to misconceptions.

Implications:

• The "genetic program" concept reinforces outdated views of "genetic" as active and "epigenetic" as passive.
• Rethinking developmental instructions requires acknowledging their distributed nature beyond DNA.