Evolution · Question 15

Which evolutionary phenomenon is depicted by the sketch given in figure? [Figure]

1. Artificial selection
2. Genetic drift
3. Convergent evolution
4. Adaptive radiation

Match List-I with List-II with respect to convergent evolution: Choose the correct answer from the options given below:

1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-IV, B-III, C-II, D-I
4. A-IV, B-II, C-III, D-I

Match List I with List II: Choose the correct answer from the options given below:

1. A-IV, B-III, C-II, D-I
2. A-IV, B-II, C-III, D-I
3. A-IV, B-III, C-I, D-II
4. A-III, B-IV, C-I, D-II

What is the correct order (old to recent) of periods in Paleozoic era?

1. Silurian, Devonian, Permian, Carboniferous
2. Silurian, Devonian, Carboniferous, Permian
3. Permian, Devonian, Silurian, Carboniferous
4. Silurian, Carboniferous, Permian, Devonian

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

1. Numbat, Spotted cuscus, Flying phalanger
2. Mole, Flying squirrel, Tasmanian tiger cat
3. Lemur, Anteater, Wolf
4. Tasmanian wolf, Bobcat, Marsupial mole

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

1. Stabilising change
2. Directional change
3. Disruptive change
4. Random change

Which of the following statements is not true?

1. Analogous structures are a result of convergent evolution
2. Sweet potato and potato are an example of analogy
3. Homology indicates common ancestry
4. Flippers of penguins and dolphins are a pair of homologous organs

Panspermia, an idea that is still a favourite for some astronomers, means:

1. Transfer of spores as unit of life from other planets to Earth
2. Creation of life from dead and decaying matter
3. Creation of life from chemicals
4. Origin of sperm in human testes

Select the correct statement regarding mutation theory of evolution.

1. Large differences due to mutations arise gradually in a population
2. This theory was proposed by Alfred Wallace
3. Variations are small directional changes
4. Single step large mutation is a cause of speciation

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

1. Genetic drift
2. Natural selection
3. Genetic recombination
4. Mutation