Tag: process of evolution

Questions Related to process of evolution

Why, according to our reading, did Darwin take so long to publish the Origin of Species?

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. Darwin wanted to share his theory as quickly as possible once he returned from his voyage on the Beagle.

  2. It took twenty years for Darwin to develop a theory.

  3. Darwin suffered from a number of illnesses.

  4. Darwin was concerned about the reaction of others to the implications of his theory.

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Correct Option: D

According to Neo Darwinism, evolution is due to :

zoology evolution of life darwin's theory of evolution process of evolution lamarckism

  1. Gene flow

  2. Change in gene structure

  3. Change in size of gene pool

  4. Change in gene frequency

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Correct Option: D

"Ontogeny repeats phylogeny" was coined by _____________.

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. Darwin

  2. Lamarck

  3. Morgan

  4. Haeckel

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Correct Option: A

In Galapogos island, Darwin found different varieties of Finches, originated from a common ancestor. The original variety of the Finches ws ____________.

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. Insectivorous

  2. Vegetarian

  3. Seed eating

  4. Cactus eating

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Correct Option: A

Read the following statements:

(i) Coelacanths can be considered as ancestors of modern day frogs and salamanders.

(ii) Darwin's finches are examples of adaptive radiation.

(iii) Adaptive radiation refers to evolution of different species from a common ancestor.

(iv) Flippers of penguins and dolphins are examples of divergent evolution.

How many of the above statements are wrong?

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. Two

  2. One

  3. Three

  4. Four

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Correct Option: B

Choose the correct answers from the alternatives given.
Many bacteria are now resistant to penicillin, because

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. previously resistant forms survived and reproduced better than non-resistant forms

  2. penicillin triggers the synthesis of resistant proteins

  3. penicillin causes gene mutations, some of which are beneficial

  4. environment inhibits competition among bacteria

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Correct Option: A
Explanation:

Due to variation in bacteria some of them have resistance from penicillin. Penicillin largely use as killing bacteria but now bacteria develop immunity to penicillin. So bacteria with resistant gene from penicillin transferred character to offspring. 

Hence, the correct answer is 'previously resistant forms survived and reproduced better than non-resistant forms'

Darwin's theory of natural selection is objected, because it (A) (B) (C) (D) Ans:112 B

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. stresses upon slow and small variations

  2. explains the adaption of certain inherited characters

  3. stresses on interspecific competition

  4. explains that natural calamities take a heavy annual toll of lives

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Correct Option: B

DDT is 

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. a non-degradable pollutant

  2. a biodegradable pollutant

  3. an antibiotic

  4. not a pollutant.

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Correct Option: A
Explanation:

DDT (Dichloro diphenyl trichloroethane) is one of the most well-known synthetic pesticide. It is non-biodegradable i.e., it cannot be degraded by microorganisms. 

Choose the correct answers from the alternatives given.
Charles Darwins book On the Origin of Species by Means of Natural Selection, was first published in

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. 1779

  2. 1831

  3. 1859

  4. 1901

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Correct Option: C
Explanation:

On the Origin of Species, published on 24 November 1859, is a work of scientific literature by Charles Darwin which is considered to be the foundation of evolutionary biology.

So the correct option is C, 1859.

Choose the correct answers from the alternatives given.
The evolutionary importance of ...............  was apparent to Darwin, but not to Linnaeus.

zoology universe and organic evolution darwin's theory of evolution process of evolution lamarckism

  1. cladistics

  2. radiometric dating

  3. variation

  4. typology

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Correct Option: C
Explanation:

Lamarck is best known for his "Theory of Inheritance of Acquired Characteristics", that is If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring. But according to Darwin, variation helps the species to survive in unfavourable condition environment.

So the correct option is C, variation.