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Struggle for existence is most acute between the members

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Important Questions on Origin and Evolution of Life

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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Critical Thinking>Q 50
Reproductive isolation leads to the formation of a 
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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Critical Thinking>Q 51
A one month old human embryo has a tail as 
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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Critical Thinking>Q 53

Which statements is CORRECT regarding genetic recombination?

(1) Genetic recombination occurs in sexually reproducing organisms.

(2) During recombination, homologous chromosomes exchange genetic material by the process of crossing over.

(3) Occurs during gametogenesis.

(4) Produces new combinations and variations.

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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Critical Thinking>Q 54
Natural selection is a process in which, it 
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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Evaluation Test>Q 1
The spark-discharge apparatus to test chemical evolution of life was designed by
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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Evaluation Test>Q 2
The CORRECT meaning of natural selection is
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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Evaluation Test>Q 3
After industrialization, with respect to Biston betularia, what was the result regarding its population?
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MHT-CET TRIUMPH Biology Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 2 - Origin and Evolution of Life>Evaluation Test>Q 4
If mating is random, population is large and mutation does not occur; then gene frequencies of population from generation to generation remain constant. This was put forward by