STANDARD Zoology Evolution Class 12 Questions

Abiogenesis means

About how long ago was the earth formed

What is true for primitive atmosphere?

Which of the following are the two key concepts of Darwinian theory of evolution?

The factors involved in the formation of new species are:

Which of the following statement is incorrect?

Read the following statements and choose the correct option A. Increase in melanized moths after industrialization in Great Britain is a proof for natural selection B. When more individuals of a population acquire a mean character value, it is called disruption C. Changes in allelic frequency in a population will lead to Hardy Weinberg equilibrium D. Genetic drift changes the existing gene or allelic frequency in future generations

Single step large mutation leading to speciation is also called

Recapitulation theory (Biogenetic law) explains "Ontogeny repeats Phylogeny". It was given by

Geographic and reproductive isolation are most closely associated with

Match the evolution concepts and their proposers and select the right option.

Following diagrammatic representation refers the natural selection on different traits. Choose the right option in which all the three graphs A, B and C are identified correctly.

A selection that acts to eliminate both extreme from an array of phenotypes is

Among the following sets of examples for divergent evolution, select the incorrect option

Which one of the following options gives one correct example each of convergent evolution and divergent evolution

Organs that have different embryonic origin but perform similar functions are

Which of the following is the most evident source of evolution

Analogous structures are a result of

________ based on his work on evening primrose believed that it is ______ which causes evolution and not the minor variations

The given figure shows an example of

The diversity within the wild bird species in the given figure can best be explained by which process

The idea of use and disuse of organs was given by

Evolution for Darwin was ______ while DeVries believed mutation caused speciation and hence called it ______

Industrial melanism as observed in peppered moth proves that

Darwin's finches discovered from the Galapagos island provide evidence in favour of

The Darwinian fitness of an organism is a measure of

The biologist who has been called the "Darwin of the 20ᵗʰ century", was

The correct sequence of evolution of man is:

The extinct human ancestor, who ate only fruits and hunted with stone weapons was

Which of the following stood erect first

The closest relative of modern man is considered to be

Match the following hominids with the correct brain size

The primate which existed 15 mya among these was