Biotechnology and Its Applications: common misconceptions

If your child says… “One added gene solves every farming problem forever.”

Ask together

Would this protein protect cotton from insects without matching gut receptors?

What’s true

Susceptible insects activate Bt protein in alkaline guts, but pest resistance can develop.

If your child says… “RNA interference makes every gene more active.”

Ask together

How could destroying these instructions increase the protein made from them?

What’s true

RNA interference reduces activity of a matching message rather than activating every gene.

If your child says… “A lab-made medicine needs no cleaning.”

Ask together

Does making insulin also remove the cells and liquid surrounding it?

What’s true

Useful proteins must be separated from their producing cells and growth medium, then checked.

If your child says… “One gene-therapy dose cures ADA deficiency forever.”

Ask together

What happens to the benefit when the corrected lymphocytes die?

What’s true

Corrected lymphocytes die, while corrected blood-forming stem cells can provide continuing replacement cells.

If your child says… “PCR finds proteins using antibodies.”

Ask together

Which route copies DNA, and which uses antibodies?

What’s true

PCR copies DNA using primers, enzymes and temperature cycles.

If your child says… “A modified animal works exactly like a human.”

Ask together

Does adding one human gene give this cow every human feature?

What’s true

Animal models reproduce selected features, so human checks and animal welfare safeguards remain necessary.

If your child says… “Every GM organism is completely safe.”

Ask together

Which result here tells us what happens to other organisms?

What’s true

Safety depends on the organism, its introduced trait and its intended use.

If your child says… “Traditional knowledge can never count against a patent.”

Ask together

Can this use be new if an earlier record already describes it?

What’s true

Documented traditional use can establish that a claimed invention was already known.