Sudden heritable changes are called

1. Linkages

2. Mutations

3. Recombinations

4. Natural selection

Theory of 'Saltations' was given by 

Single step large mutation leading to
speciation is also called
1. Founder’s effect
2. saltation
3. branching descent
4. natural selection

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?