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MP Board Class 12 (MPBSE) Reproduction In Organisms — practice questions — page 2

Explore 35 free Reproduction In Organisms questions in MP Board Class 12 (MPBSE) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Reproduction In Organisms questions and exercises with answers

Showing questions 31–35 of 35.

Spot the odd one outRead the answer and worked solution →Assertion and reason: mechanismsRead the answer and worked solution →Two true, one falseRead the answer and worked solution →Tap every statement the chapter supportsRead the answer and worked solution →Complete the role of variationRead the answer and worked solution →

Worked practice questions

Spot the odd one out

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Questions
  1. Items
    1. Variation
    2. Interphase
    3. Fitness
    Odd item
    Interphase
  2. Items
    1. Drift
    2. Selection
    3. Replication
    Odd item
    Replication
  3. Items
    1. Cell theory
    2. Homology
    3. Common ancestry
    Odd item
    Cell theory
One is not an evolutionary idea. Source: syllabus Biology, Evolution.

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Assertion and reason: mechanisms

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Questions
  1. Reason
    It works through changes in the distribution of variation across a group.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Evolution is a property of populations, not individuals.
  2. Reason
    Fragmented populations diverge without interbreeding to average them out.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Isolation can speed the appearance of new species.
  3. Reason
    Drift changes a population by chance.
    Verdict
    The assertion is false and the reason is true.
    Assertion
    Genetic drift favours the fittest.
The reason must genuinely explain the assertion. Source: syllabus Biology, Evolution.

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Two true, one false

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Questions
  1. False statement
    Drift responds to fitness
    Statements
    1. Selection responds to fitness
    2. Drift is a chance process
    3. Drift responds to fitness
  2. False statement
    Cellular life came first
    Statements
    1. Cellular life came first
    2. Chemical evolution came first
    3. Cellular life followed
  3. False statement
    Homology suggests separate origins
    Statements
    1. Homology suggests common ancestry
    2. Homology suggests separate origins
    3. Variation exists in populations
The false line swaps drift for selection. Source: syllabus Biology, Evolution.

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