How do Mendel’s experiments show that traits are inherited independently?
Mendel considered 2 different characteristics of pea plants and analysed the offspring produced.
This is known as a dihybrid cross- the cross of F 1 generation offspring which have forms of two different traits.
Let us consider Seed Shape and Seed Colour .
- Here - Round and Yellow are dominant traits.
Wrinkled and Green are recessive traits.
- As observed in the previous example, the F 1 generation shows dominant traits only - Yellow and Round.
- But the F 2 generation shows different traits :
- Yellow and Round seeds
- Green and Round seeds
- Yellow and Wrinkled seeds
- Green and Wrinkled seeds
- We notice combinations in offspring that were not seen in the parents .
- Hence, in the case of Dihybrid cross, the traits are inherited independently .