Evolution PYQ — Page 2

Embryological support for evolution was proposed by:

After about how many years of formation of earth, life appeared on this planet?

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

In a species, the weight of the newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 and 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

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

Match the hominids with their correct brain size: <table class="pyq-table"><tbody><tr><th></th><th>Column - I</th><th></th><th>Column - II</th></tr><tr><td>$(a)$</td><td>Homo habilis</td><td>$(i)$</td><td>900 cc</td></tr><tr><td>$(b)$</td><td>Homo neanderthalensis</td><td>$(ii)$</td><td>1350 cc</td></tr><tr><td>$(c)$</td><td>Homo erectus</td><td>$(iii)$</td><td>650-800 cc</td></tr><tr><td>$(d)$</td><td>Homo sapiens</td><td>$(iv)$</td><td>1400 cc</td></tr></tbody></table> Select the correct option.

Variations caused by mutation, as proposed by Hugo de Vries, are:

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the Population?

The similarity of bone structure in the forelimbs of many vertebrates is an example of:

According to Hugo de Vries, the mechanism of evolution is

Which of the following does not show divergent evolution?

Artificial selection to obtain cows yielding higher milk output represents

Which of the following represents the order of 'Horse'?

The chronological order of human evolution from early to the recent is

Genetic drift

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

Which of the following is the correct sequence of events in the origin of life? (i) Formation of protobionts (ii) Synthesis of organic monomers (iii) Synthesis of organic polymers (iv) Formation of DNA-based genetic systems

Following are the two statements regarding the 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 one of the following options is correct?

Analogous structures are a result of:

Which of the following structures is homologous to the wing of a bird?

The wings of a bird and the wings of an insect are:

Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?

Industrial melanism is an example of:

A population will not exist in Hardy-Weinberg equilibrium if: