A study of evolution has established the systematic positions in many animals. In some animals chordate characters are absent in adult stage, but present in larval stage, eg. Herdmania has been included in ______.

Von baer supports the theory of evolution on the basis of

Vermiform appendix in man, nictitating membrane and wisdom teeth are ______.

Mesozoic era is associated with mass extinction of ______.

Evolutionary convergence is characterised by

Which one of the following is present today but was absent about 3.5 billion years ago ?

What was the mixture of gases used in Miller exprement ?

Who performed this famous experiment to prove origin of life ?

The first organism to be found on a bare rock is a (an) ______.

The doctrine of evolution is concerned with ______.

A biologist is trying to infer how five closely related species of snakes are related to one another. She notices that some of the snakes have forked tongues and others do not. Which of the following would help her distinguish the ancestral state?

How is extinction represented in a tree diagram?

Which of the following are kingdoms?

Reproductive isolation is:

Which of the following is not atavistic in humans?

An isolated population of humans with approximately equal number of blue eyed and brown eyed individuals was decimated by an earthquake. Only a few brown eyed people remained to form the next generation. This kind of change in the gene pool is called a:

Following are two statements regarding origin of life. (i) The earliest organisms that appeared on the earth were non green and presumably anaerobes. (ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which of the following option is correct?

Microspheres and coacervatives were experimentally produced by:

Small and spherical vessels, bounded by a membrane like amino acid are:

Correct order is: )

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?

Age of fossils in the past was generally determined by radio – carbon method and other methods involved radioactive elements found in the rocks. More precise methods were used recently and led to the revision of the evolutionary periods for different groups of organisms, include:

Which of the following amino acids was not found to be synthesized in Miller’s experiment?

Assertion: Atavism is the reappearance of disappeared ancestral characters. Reason: Third molars and hair on the body are examples of atavism.

Gene pool is:

In a population with 200 individuals, the allele for sickle cell anaemia has a frequency of 0.Find out the number of sickle cell anaemia carriers in the population?

Identify the incorrect statement regarding vertebrate evolution:

Fire for protection and cooking was first used by:

There would be no evolution if:

Occurrence of endemic species in South-America and Australia is due to

Darwin's theory of pangenesis shows similarity with theory of inheritance of acquired characters then what will be correct according to it?

Homo sapiens arose in Africa and moved across continents and developed into distinct races. What evidence the scientists used to estimate when and where modern humans evolved?

The phenomenon “Ontogeny repeats Phylogeny” is explained by:

Choose the mismatched pair:

In 1953, S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre – existing non – living organic molecules. The primitive earth conditions created, included:

Identify the wrong statement from the following:

From the following examples which ones are not explaining “Mutations are pre – adaptive”? (i) Mutilation experiment in mice by Weismann. (ii) Ancon – sheep experiment in Neo Darwinism. (iii) Antibiotic resistant bacteria. (iv) Lederberg replica plating experiment. (v) Experiment of De Vries in Papaver somniferum.

Select the incorrectly matched from the following:

Read the following statements about fossilization: (i) Animals and plants get fossilised and preserved in volcanic ash. (ii) Replacement of organic parts by mineral decomposition is called Petrification which occurs only of hard parts, e.g. bones. (iii) Casts are prints of leaves, stem, etc in soft mud which become fossilised. (iv) Fossils present in the upper strata of earth are older than those present in lower strata. Of the above statements:

Homo sapiens:

The land reptile which went back into water to evolve into fish like reptiles:

Zosterophyllum evolved from:

If more individuals acquire peripheral character value at both the ends of the distribution curve; in such case natural selection has resulted in:

Darwinian theory of evolution-

The concept of chemical evolution is based on:

Homo sapiens appeared in:

Evolutionary convergence is development of:

Phylogenetic system of classification is based on:

Role of isolation in evolution is:

Neanderthal man might have lived around: