Scruple
Can is not should
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Scruple kept a little brass scale on her lab bench, and she used it for things that weren't heavy at all.
She was a tortoise-tween with a patterned amber shell, a lavender lab coat buttoned all the way up and round spectacles on a beaded chain. She did not weigh powders or seeds on her scale. She put questions on it. Little paper cards. "Who does it affect?" on one side. "What could go wrong?" on the other. She liked to watch them balance.
One morning Snip, the cuttlefish, came jetting into the lab, holding up a glowing sample tray in two curly arms. "Scruple! I've worked out how to change one gene in the garden's tomato plants. They'd grow twice as fast! We could do it today!"
Scruple put down her pencil. "That's clever," she said, and meant it. "Can I ask my questions first?"
Snip groaned happily, because Snip always knew this was coming. "Go on."
"Who does it affect?" said Scruple. "Just the tomatoes? The bees that visit them? The other plants they might cross with? What could go wrong? And if something does go wrong," she tapped the third card, "can we undo it?"
Scruple had not always asked questions first.
When she was small, she loved anything that was possible. If something could be done, she wanted to do it, right away, and see what happened. She once mixed every colour of paint together just because she could, and got a big brown puddle. She once let all the class's snails out of their tank to see where they'd go, and spent the whole afternoon finding them again, under desks and inside a lunchbox.
The snails were fine. But Scruple remembered the sinking feeling, crawling under the desks, of having done something she couldn't easily undo.
Her grandmother, a slow, thoughtful tortoise who had been a scientist for many years, found her sitting quietly that evening. "Being able to do a thing is the start of a question, little one," she said, "not the answer. The bigger the change, the more it matters who it touches and whether you can take it back." She gave Scruple the little brass scale. "Put your questions on here before you decide. Then decide."
When Scruple came to GeneForge, she brought the scale.
"Genetics lets us do astonishing things," the mentor said, the first day. "We can read genes, and now we can even change some of them. What will you bring to the lab?"
"Questions," said Scruple. "Not to stop anyone. To make sure we've thought about it before we do it. Who it affects. What could go wrong. Whether it can be undone." She set the scale on the bench. "Different people weigh those differently, and that's allowed. But nobody should skip them."
The mentor nodded slowly. "You belong here."
So she and Snip sat with the tomato idea.
"It only affects the tomatoes," Snip began, then paused. "Well. The bees carry pollen. So it might spread to the wild tomato plants by the fence."
"And what could go wrong?" said Scruple.
Snip thought. "Faster plants might use up all the water. Or crowd out the beans." He frowned. "I don't actually know. We've never tried it."
"Can it be undone?" said Scruple gently.
"Not if it spreads to the wild ones," said Snip slowly. He looked at the glowing tray. "Okay. What if we grow one changed plant in the greenhouse first, with the door closed, and watch it for a whole season? Then we'd know more before anything gets out."
Scruple smiled and slid the cards back off her scale. "That's a decision I can feel good about," she said. "Careful, and still curious."
At the end of the day, Snip lingered by her bench.
"Do you ever wish you didn't have to ask all the questions?" he asked. "Like, wouldn't it be easier to just do things?"
Scruple thought about the snails under the desks, and the sinking, can't-undo-it feeling.
"Easier for a minute," she said. "But I've felt what it's like to do something I couldn't take back. I don't like that feeling." She polished her little scale. "When I ask my questions first, I get a different feeling. A careful, steady calm, like standing on firm ground before you jump. And whatever we decide, I know we decided it on purpose."
Snip nodded, and Scruple watched the hurry go out of him, replaced by something slower and surer.
The TraitForge ensemble
Scruple is one of the friends in TraitForge. Each friend shows you one idea by how they act; meet them all and you have the whole subject.
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Suds
DNA extraction
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Bead
Gene as discrete inheritable unit
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Rungs
DNA structure / base-pairing
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Skein
Chromosome packaging
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Match
Allele pairing (Punnett crosses)
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Deal
Recombination / why siblings differ
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Trace
Lineage / heredity across generations
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Script
DNA → RNA → protein (the genetic code as a recipe)
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Nurture
Environment shapes genes / nature and nurture
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Snip
Mutation + CRISPR (variation + intervention)