Mendel's Pea Plants
Class 10 Science: heredity (Mendel's monohybrid cross)
Cross tall and short pea plants like Mendel did. Fill the Punnett square and find the famous 3 : 1 ratio.
Words to know
- Gene
- A part of DNA that controls a trait, like the height of a pea plant.
- Dominant
- A trait that shows even when only one copy is present, like T (tall).
- Recessive
- A trait that shows only when both copies are present, like t (short).
- Genotype
- The pair of genes a plant carries, such as TT, Tt or tt.
- Phenotype
- What the plant looks like, such as tall or short.
Quick check
Answer 3 questions to check what you learned.
Try at home
Look at family members: can everyone roll their tongue or not? Make a small table. Traits like this are passed on from parents.