Question
State the three principles of Mendel’s law of inheritance.
✓
Answer
Mendel’s Laws of Inheritance:
- Based on his hybridisation experiments, Mendel proposed the laws of inheritance.
- His theory was rediscovered by Hugo de Vries of Holland, Carl Correns of Germany and Eric von Tschermak of Austria in 1901.
- Law of dominance:
- This law states that when two alternative forms of a trait or character (genes or alleles) are present in an organism, only one factor expresses itself in $F_1$ progeny and is called dominant while the other that remains masked is called recessive.
- Law of segregation:
- This law states that the factors or alleles of a pair segregate from each other during gamete formation, such that a gamete receives only one of the two factors. They do not show any blending.
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