What is genetic equilibrium?

1.	When all the alleles of a gene are present in a population in equal frequencies
2.	When the number of heterozygotes in a population are equal to the number of either of the homozygote
3.	When the number of heterozygotes in a population are equal to the number of either of the homozygote
4.	When the frequency of particular genes or alleles remain constant in a population through generations

The presence of the monotremes and marsupials in the Australian continent can be explained by:

1.  Convergent evolution

2.  Adaptive radiation

3.  Punctuated equilibrium

4.  Gene flow 

Which of the following would lead to deviation from Hardy-Weinberg equilibrium?

1. Random mating

2. Lack of mutations

3. No gene flow or gene migration

4. Natural selection

The now extinct reptile group that evolved into mammals was:

1. Therapsids

2. Dinosaurs

3. Thecodants

4. Sauropsids

Identify the correct statement:

Most fossils are found in:

1. Granite

2. Sedimentary rocks

3. Lava flows

4. Black soil

Darwin believed that certain parts of the body get larger and more complex through the generations because they :

1. are used more extensively than other parts 

2. contribute to greater reproductive success

3. are pre-determined to do so 

4. are most similar to God's perfection 

Directional selection favours:

In Hardy- Weinberg equation, the frequency of heterozygous individual is represented by

(1) P²

(2) 2pq

(3) pq

(4) q²

A location with luxuriant growth of lichens on the trees indicates that the:-

1. trees are very healthy

2. trees are heavily infested

3. location is highly polluted

4. location is not polluted