From Gene to Message – Transcription

Time To Read

1–2 minutes

Date Last Modified

OVERVIEW

PART 1

PART 2

PART 3

PART 4

PART 5

PART 6

PART 7

Quiz

4

CHART CLUE

This is the molecular climax – where genetics finally explains everything. The MEFV gene is transcribed and translated into misfolded pyrin; the mutation existed once, in the zygote, and mitosis copied that single typo into every cell Stina ever made. The reveal: a clinician finally recognizes the periodic-fever pattern and orders the MEFV panel.

The master recipe stays safe inside the nucleus; a disposable working copy – mRNA – carries the message out to the ribosomes. When MEFV is transcribed, the typo is copied faithfully into that message too. Only the genes a cell needs get transcribed, which is why different cells do different jobs from the same DNA.

From Stina’s chart: “It was written in me the whole time.” That’s how she describes it now — the message there since before she could remember, copied out, attack after attack.

The message reaches the ribosome. One wrong codon is about to become one wrong amino acid.

List of terms