John Gurdon
British developmental biologist (1933–2025)
The numbers
1 + 9 = 10
1 + 0 = 1
Lo Shu grid
Missing: 4, 5, 6, 7, 8. Present digits repeat to show how many times they occur.
Life path 1 — The Initiator
Tradition reads 1 as the number of origination — the point before anything has been divided. Practitioners associate it with people who move first, set direction, and carry the discomfort of being early. The same tradition is candid about the cost: the instinct that starts a thing is not the instinct that finishes it, and 1 is read as needing others precisely where it least wants to admit it.
Complete lines
Line of Expression
A complete line in the grid.
Repeated numbers
1 appears 4 times
Concentrated self-direction. Read as conviction that does not need external agreement — and does not always seek it.
What is missing
Missing 4
Read as impatience with structure and maintenance. Associated with starting well and leaving the scaffolding to someone else.
Missing 5
The centre of the grid, so its absence is weighted heavily. Read as difficulty adapting mid-course — a preference for the plan already chosen over the plan now indicated.
Missing 6
Read as a complicated relationship with obligation — either avoiding it or over-shouldering it, rarely a settled middle.
Missing 7
Read as reluctance to sit with an unresolved question. Associated with wanting the working answer rather than the true one.
Missing 8
Read as discomfort with power and money — not incapacity, but an unwillingness to claim authority openly.
Vedic — Ank Jyotish
Moolank 2 comes from the day of the month alone; Bhagyank 1 from the whole date. They differ, which is the ordinary case — the two numbers answer different questions.
Chandra
The Moon. Mind, mood, reflection. Read as receptivity and changeability.
Bhagyank uses the same arithmetic as the Western life path, so the two will always agree. That is not two traditions confirming each other — it is one calculation under two names.
In their words
Michail Fischberg was well aware of the value of genetics in developmental biology, and when I joined him, he had just started using Xenopus as a laboratory animal, on the grounds that it could be grown to sexual maturity within a year and that, as it is wholly aquatic, it is easy to keep in the laboratory. Xenopus can deliver eggs throughout the year, in contrast to the limited-season availability of eggs from Rana and European newts, the organisms of choice for European embryologists. The history of how a frog that naturally occurs only in Africa has come to be one of the half-dozen most used animals for research is bizarre (Gurdon & Hopwood 2000).
Cells specialise in ways determined by the concentration of signal that they receive ... The best example of signaling between cells is by the signal molecule activin, discovered in embryos by Makoto Asashima and J. C. Smith.
My own view of development is that one has to try to narrow things down to single entities, whether it's a cell or a nucleus or a molecule, and I'm often ridiculed because I always ask people what concentration their molecule is at, and they'll say that it doesn't matter.I'd say that concentration and time are the two critical things in development. You need to know the concentration, and you need to know how long it has to be there to make a difference – because for cells, a particular concentration of a molecule for a few seconds may not be the same as that concentration for 10 minutes. So I would take the view that what we really lack in developmental biology at the moment is any ability to determine the concentration of proteins, analogous to the measurement of nucleic acids using PCR.
Sourced from Wikiquote, restricted to the subject’s own sourced sections.