A plant with green pods and smooth seeds with genotype Ggss will give rise to the following gametes:

1. Gg and Ss
2. Gs and ss
3. Gs and gs
4. Gg and gs

The disease colour blindness is a :

1. Recessive X-linked disease
2. Dominant Y-linked disease
3. Recessive Y-linked disease
4. Dominant X-linked disease

Purity of gametes is linked to :

1. Law of dominance
2. Law of independent assortment
3. Law of segregation
4. Law of limiting factor

The phenotypic dihybrid ratio of F₂ generation is

1. 9:3:1:1
2. 9:1:3:1
3. 9:1:3:3
4. 9:3:3:1