How to lay out the answer. Follow the frame, then write it in your own words.
1 · Open in two lines. Nutrigenomics is the study of how food and nutrients affect our genes. It grew out of the Human Genome Project and aims at personalised nutrition.
2 · Draw the two-way link. [Diagram: food → genes (nutrigenomics); genes → response to food (nutrigenetics); both → personalised nutrition]
3 · Nutrigenomics vs nutrigenetics.
Nutrigenomics: food → gene expression (e.g., PUFA, vitamin A, vitamin D act through gene receptors).
Nutrigenetics: gene variants (SNPs) → response to food.
4 · Examples.
Lactose intolerance and lactase persistence.
MTHFR variant and folate.
PKU and the low-phenylalanine diet.
5 · Significance. Explains why people respond differently to the same diet and guides diets for genetic disorders. Limits: many genes, lifestyle, cost and privacy.
6 · Nutrition link. Curd for lactose intolerance; folate-rich greens and pulses; diet therapy in PKU.
7 · Close in one line. Close with its promise for personalised nutrition in the future.
Scoring tip: Define both terms clearly and give at least two examples; that is enough for 5 marks.
Write-up practice
The check looks for key words only. It does not grade your answer and never writes it for you.