Question

a) Among lion, tiger and domestic cat, all the three have the same number of 38 chromosomes, yet they have different appearances. How do you account for such differences? [5 MARKS]
b) List any three features of garden pea with their dominant and recessive traits.

Answer 1

a) 2 Marks
b) 3 Marks

a) Lion, tiger and domestic cat have the same number of 38 chromosomes yet they have different appearances due to different genes located on the chromosomes.

b) Any Three:
Seed Shape - Round(Dominant Trait) - Wrinkled(Recessive Trait)
Seed Colour - Yellow(Dominant Trait) - Green(Recessive Trait)
Flower Colour - Purple(Dominant Trait) - White(Recessive Trait)
Pod Colour - Green(Dominant Trait) - Yellow(Recessive Trait)
Pod Shape - Inflated(Dominant Trait) - Constricted(Recessive Trait)
Flower Position - Axillary(Dominant Trait) - Terminal(Recessive Trait)
Plant Height - Tall(Dominant Trait) - Dwarf(Recessive Trait)