Evolution by __‘a’__ in a true sense would have started
when cellular forms of life with differences in metabolic
capability originated on earth. Here ‘a’ is
1. Mutation
2. Natural selection
3. Genetic drift
4. Special creation

In the following figures, there are three skulls. Which statement is correct about these skulls?

1.  A – Skull of a baby chimpanzee
     B – Skull of a man
     C – Skull of adult human

2.  A – Skull of an adult chimpanzee
     B – Skull of a baby chimpanzee
     C – Skull of adult human

3.  A – Skull of an adult chimpanzee
     B – Skull of adult human
     C – Skull of a baby chimpanzee

4.  A – Skull of a baby chimpanzee
     B – Skull of adult human
     C – Skull of an adult chimpanzee

Mark the incorrect statement?

1. Force of natural selection started with cellular form of life

2. According to natural selection rate of appearance of new forms is linked to life cycle or the life span

3. According to natural selection theory of fitness is based on characteristic which are inherited

4. Natural selection produces new genetic variability in a population.

In replica-plate experiment some bacteria able to grow in penicillin containing medium due to

1. Natural selection 

2. Reproductive isolation

3. Genetic drift 

4. Crossing over

'Founder effect' is related to - 

1. Gene recombination and Natural selection

2. Genetic drift and origin of new species 

3. isolation and Natural selection 

4. Hybridization and origin of new species 

In Galapagos island, Darwin found different varieties of finches, originated from a common ancestor. The original variety of these finches was:- 

1. Insectivorous

2. Vegetarian

3. Seed-eating

4. Cactus eating 

The rate of appearance of new forms is linked with:

1. Mutation

2. Life span

3. Use and disuse

4. Genetic drift

Adaptive radiation does not follow which of the following statements?

What will be the frequency of homozygote dominant in a population of triploid organisms.

Which of the following could evolve by the time of 500 mya?