Evolution

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

Genetic drift operates in

Which of the following statements is not true ?

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

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

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?

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

Analogous structures are a result of:

Artificial selection to obtain cows yielding higher milk output represents

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

According to Hugo de Vries, the mechanism of evolution is

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

Match the hominids with their correct brain size : (a) Homo habilis - (i) 900 cc (b) Homo neanderthalensis - (ii) 1350 cc (c) Homo erectus - (iii) 650-800 cc (d) Homo sapiens - (iv) 1400 cc Select the correct option.

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

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?

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

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

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

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

Flippers of Penguins and Dolphins are examples of:

The flippers of the Penguins and Dolphins are the example of the

Embryological support for evolution was disapproved by

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? (a) Darwin's Finches of Galapagos islands (b) Herbicide resistant weeds (c) Drug resistant eukaryotes (d) Man-created breeds of domesticated animals like dogs

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

The factor that leads to Founder effect in a population is:

Match list I with list II. List I | List II (a) Adaptive radiation | (i) Selection of resistant varieties due to excessive use of herbicides and pesticides (b) Convergent evolution | (ii) Bones of forelimbs in Man and Whale (c) Divergent evolution | (iii) Wings of butterfly and birds (d) Evolution by anthropogenic action | (iv) Darwin Finches Choose the correct answer from the options given below

Natural selection where more individuals acquire a specific character value other than the mean character value, leads to:

Identify the fossil of man who showed the following characteristics. (A) Brain capacity of 1400 cc (B) Used hides to protect their body (C) Buried their dead bodies In the light of above statements, choose the correct answer from the options given below:

Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.

Given below are some stages of human evolution. Arrange them in correct sequence. (Past to Recent) A. Homo habilis B. Homo sapiens C. Homo neanderthalensis D. Homo erectus Choose the correct sequence of human evolution from the options given below:

Which of the following factors will not affect the Hardy-Weinberg equilibrium?

Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.

Natural selection can lead to _________. (a) stabilisation; (b) genetic drift; (c) directional change; (d) disruption.

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is:

A population of diploid organisms is at Hardy–Weinberg equilibrium. If the frequency of allele A is 0.1, the frequency of AA is ________.

Assertion A: Forelimbs of humans and bats are homologous. Reason R: Forelimbs of humans and bats have similar anatomical structure. Choose the most appropriate answer:

Match List I with List II with respect to chronology of evolution of life forms List-I A. About 65 mya B. About 500 mya C. About 350 mya D. About 320 mya List-II (I) Jawless fish probably evolved (II) The dinosaurs suddenly disappeared from the earth (III) Seaweeds and few plants probably existed (IV) Invertebrates were formed and became active Choose the correct answer from the options given below:

Adaptive radiation in placental mammals and Australian marsupials, leading to similarity between distant species, is an example of ________.

Which of the following is not an example of convergent evolution?

Statement I: Modern Homo sapiens arose in Australia and moved across continents. Statement II: Homo sapiens arose around 75,000 to 10,000 years ago. Choose the most appropriate answer:

Which of the following is NOT evidence for evolution?