Good examples of recapitulation theory is

(1) The embryonic membrane of reptiles

(2) Tadpole larva of frog

(3) Placenta of mammals

(4) Canine teeth of the dog

The sum total of all the alleles in a population constitute the

(1) chromosome complement

(2) karyotype

(3) gene pool

(4) allele group

Which of the following refers to correct example(s) of organisms that have evolved due to changes in environment brought about by anthropogenic action?

1. (a) and (c)

2. (b), (c) and (d)

3. only (d) 

4. only (a) 

From his experiments, S.L. Miller produced amino acids by mixing which of the following in a closed flask:

1. ${\mathrm{CH}}_3,$ ${\mathrm{H}}_2,$ ${\mathrm{NH}}_4$ $\mathrm{and}$ $\mathrm{water}$ $\mathrm{vapour}$ $\mathrm{at}$ $800°\mathrm{C}$

2. ${\mathrm{CH}}_4,$ ${\mathrm{H}}_2,$ ${\mathrm{NH}}_3$ $\mathrm{and}$ $\mathrm{water}$ $\mathrm{vapour}$ $\mathrm{at}$ $600°\mathrm{C}$

3. ${\mathrm{CH}}_3,$ ${\mathrm{H}}_2,$ ${\mathrm{NH}}_3$ $\mathrm{and}$ $\mathrm{water}$ $\mathrm{vapour}$ $\mathrm{at}$ $600°\mathrm{C}$

4. ${\mathrm{CH}}_4,$ ${\mathrm{H}}_2,$ ${\mathrm{NH}}_3$ $\mathrm{and}$ $\mathrm{water}$ $\mathrm{vapour}$ $\mathrm{at}$ $800°\mathrm{C}$

Flippers of Penguins and Dolphins are examples of:

Which of the following statements is correct about the origin and evolution of men?

A population of a species invades a new area. Which of the following condition will lead to Adaptive Radiation?

In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as:

1. Adaptive Radiation

2. Divergent Evolution

3. Cyclical Evolution

4. Convergent Evolution

A person with sickle cell anemia is:

Embryological support for evolution was proposed by: