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AP Biology Unit 7A: Natural Selection & Evolutionary Mechanisms — practice questions — page 2

Explore 52 free Unit 7A: Natural Selection & Evolutionary Mechanisms questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 7A: Natural Selection & Evolutionary Mechanisms questions and exercises with answers

Showing questions 31–52 of 52.

Match each term to its meaningRead the answer and worked solution →True or false: evolutionRead the answer and worked solution →Complete the selection ruleRead the answer and worked solution →Which one does not belong?Read the answer and worked solution →A person with blood group AB has the genotype:Read the answer and worked solution →Thomas Hunt Morgan used which model organism for his genetic studies?Read the answer and worked solution →To isolate DNA from bacterial cells, the cell wall is digested by:Read the answer and worked solution →Mendel selected pea plants with how many pairs of contrasting traits?Read the answer and worked solution →Aneuploidy refers to:Read the answer and worked solution →Wobble hypothesis explains:Read the answer and worked solution →Translation occurs at the **ribosome**. The codon currently being read sits at the:Read the answer and worked solution →Key features of the **genetic code** include all of the following EXCEPT:Read the answer and worked solution →After repeated PCR cycles, the gene of interest can be amplified to approximately:Read the answer and worked solution →Mendel's Law of Independent Assortment is best illustrated by the F₂ phenotypic ratio of:Read the answer and worked solution →The ABO blood-group gene (I) has how many alleles in the human population?Read the answer and worked solution →In humans, the sex-determination mechanism is:Read the answer and worked solution →In grasshopper, the sex-determination mechanism is:Read the answer and worked solution →Which of the following is a mutagen?Read the answer and worked solution →Sickle-cell anaemia is a:Read the answer and worked solution →β-Thalassemia is controlled by which gene?Read the answer and worked solution →Down's syndrome is caused by:Read the answer and worked solution →NEET · Biology · Whittaker's Five KingdomsRead the answer and worked solution →

Worked practice questions

Match each term to its meaning

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Matching pairs
  1. Left
    Adaptation
    Right
    Heritable trait that aids survival
  2. Left
    Neutral mutation
    Right
    Change with no fitness effect
  3. Left
    Vestigial
    Right
    Structure left without a function
Instructions
Tap a term on the left, then tap its meaning on the right.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 18 'Evolution and the Origin of Species', sections 18.1-18.3_

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True or false: evolution

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Questions
  1. Statement is true
    No
    Statement
    Being taller from better food can be selected on.
  2. Statement is true
    Yes
    Statement
    Natural selection is the only known adaptive mechanism.
  3. Statement is true
    No
    Statement
    Antibiotics create the resistance gene in bacteria.
  4. Statement is true
    Yes
    Statement
    Sexual reproduction adds to genetic diversity.
  5. Statement is true
    No
    Statement
    The same traits are always selected in every era.
Instructions
Tap True or False for each statement.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 18 'Evolution and the Origin of Species', sections 18.1-18.3_

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Complete the selection rule

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Missing parts
  1. Answer
    genetic
    Choices
    1. genetic
    2. nutritional
    3. seasonal
  2. Answer
    adaptation
    Choices
    1. adaptation
    2. migration
    3. mutation
  3. Answer
    adaptive
    Choices
    1. adaptive
    2. random
    3. neutral
Complete the statement
Selection acts on variation that has a {0} basis; over time it raises the population's {1} to its local environment, which is why it is the only known {2} mechanism.
Instructions
Tap a word for each blank to complete the rule.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 18 'Evolution and the Origin of Species', sections 18.1-18.3_

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