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Important Questions

Evolution

Odisha Board · Class 12 · Biology

Most important questions from Evolution for Odisha Board Class 12 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.

45 questions50 flashcards5 concepts

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A comparison scene showing the population of light and dark peppered moths on tree trunks in a rural (pre-industrial) and an industrial (post-industrial) environment, illustrating natural selection.
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45 Questions·
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Sample Questions

1multiple correct

Which of the following are evidences for evolution? (Select all correct answers)

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Fossil records, Comparative anatomy, Embryological similarities, Biochemical similarities

Fossil records, comparative anatomy, embryological similarities, and biochemical similarities all provide evidence for evolution. Spontaneous generation is a disproved theory about origin of life.

2multiple choice

Miller's experiment demonstrated the formation of which biomolecules?

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Amino acids

S.L. Miller's experiment in 1953 demonstrated the formation of amino acids under early Earth conditions using electric discharge in a mixture of methane, hydrogen, ammonia, and water vapor.

3multiple correct

Which factors can disturb Hardy-Weinberg equilibrium? (Select all correct answers)

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Gene migration, Genetic drift, Natural selection, Mutation

Gene migration, genetic drift, natural selection, mutation, and genetic recombination can disturb Hardy-Weinberg equilibrium. Constant population size helps maintain equilibrium.

4multiple choice

Darwin's finches are an example of:

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Adaptive radiation

Darwin's finches demonstrate adaptive radiation - evolution of different species from a common ancestor to occupy different ecological niches, with different beak shapes for different food sources.

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Frequently Asked Questions

What are the important topics in Evolution for Odisha Board Class 12 Biology?
Evolution covers several key topics that are frequently asked in Odisha Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Evolution — Odisha Board Class 12 Biology?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Evolution?
There are 45 practice questions available for Evolution. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 13 chapters — Odisha Board Class 12 Biology Important Questions

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