Evolution practice · Mixed difficulty

The ratio of methane, ammonia and hydrogen in Stanley Millers experiment was

All of the following are drawbacks of Darwin’s theory except

Assertion : The immediate ancestor of present
day humans was Australopithecus.

Reason : The fossils of Australopithecus were
discovered from Australia, and its cranial
capacity was 1150-1300 $c{m^3}$
which is very close
to that of humans 1400-1450 $c{m^3}$
.

Which of the following statement is correct regarding the evolution of humans?
I. The skull of adult chimpanzee is more like adult human skull than baby chimpanzee skull
II. The skull of baby chimpanzee is more like adult human than adult chimpanzee skull
III. Dryopithecus is oldest human like fossil
IV. Dryopithecus found in Miocene rock of Africa and Europe
The correct option is

Who disproved the theory of spontaneous generation forever?

Ontogeny recapitulates phylogeny, this theory is called as

The best description of natural selection is

Assertion : Mutations are important for the
survival of a species.

Reason : A living species that would suppress
mutation process might gain a temporary
advantage in an unchanged environment.

A population is in Hardy – Weinberg equilibrium for a gene with only two alleles. If the gene frequency of an allele A is 0.7, the genotype frequency of Aa is

Evolution is not continuous. It is a Jerky and a discontinuous process. This is the punch line of

In 1938, a fish caught in South Africa happened to be a coelacanth which was thought to be extinct. These animals called lobe fins evolved into first

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

Darwin’s book ‘Origin of New Species by Natural Selection’ was published in

Age of gymnosperm is

The crosspterygian fish 'Latimaria' is considered as the ancestor of terrestrial tetrapods. During which period these fishes evolved into Amphibians?

Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as

What do homologous organs indicates?

Which of the following statement is true regarding the theory of natural selection?

Oparin and Haldane’s theory is also called

Theory of special creation arguments that:  I. all living organisms were created as such, II. the diversity was always the same since creation, III. earth is 4000 years old. Choose the right option to complete the given statement

Evolutionary development of a species can be studied by

The theory of random genetic drift was proposed by

The greatest evolutionary change enabling the land vertebrates to be completely free from the water was the development of

The idea that "Certain factors called mutations can bring sudden change even in a span of single generation" was supported by

Darwin finches are related to which of the following evidences :

Natural selection means

A gene locus has two alleles $A$ and $a$, if the frequency of dominant allele $A$ is 0.6 then what will be the percentage of homozygous recessive individuals in the population?

The theory of pangenesis was rejected due to the acceptance of

How do we compute the age of a fossil

Primary source of allelic variation is