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Test: Variation and inheritance - Year 9 MCQ


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10 Questions MCQ Test Year 9 Biology (Cambridge) - Test: Variation and inheritance

Test: Variation and inheritance for Year 9 2024 is part of Year 9 Biology (Cambridge) preparation. The Test: Variation and inheritance questions and answers have been prepared according to the Year 9 exam syllabus.The Test: Variation and inheritance MCQs are made for Year 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Variation and inheritance below.
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Test: Variation and inheritance - Question 1

Which one of the following is an environmental variation?

Detailed Solution for Test: Variation and inheritance - Question 1
Environmental variation is not dependent on genes
Test: Variation and inheritance - Question 2

Which group do Seals belong to?

Detailed Solution for Test: Variation and inheritance - Question 2
Mammals give birth to live young and suckle their young
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Test: Variation and inheritance - Question 3

Animals with a backbone are called what?

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Humans are therefore a vertebrate animal
Test: Variation and inheritance - Question 4
Which of the following animals have a backbone?
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All the others are invertebrates and their bodies are supported (and protected) by an exo-skeleton (external skeleton)
Test: Variation and inheritance - Question 5
Which of the following groups breathe through moist skin and lungs, and need water to breed?
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Frogs are amphibians
Test: Variation and inheritance - Question 6
Which one of the following shows discontinuous variation?
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This is controlled only by genes
Test: Variation and inheritance - Question 7
Which one of the following is an inherited variation?
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Inherited variation depends on genes
Test: Variation and inheritance - Question 8

Which genetic disorder is characterized by the inability to properly metabolize phenylalanine?

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Phenylketonuria (PKU) is a genetic disorder caused by mutations in the gene for the enzyme phenylalanine hydroxylase, leading to the accumulation of phenylalanine in the body.

Test: Variation and inheritance - Question 9

Which term describes the phenomenon where a single gene has multiple effects on an organism's phenotype?

Detailed Solution for Test: Variation and inheritance - Question 9

Pleiotropy refers to the ability of a single gene to have multiple effects on an organism's phenotype, often affecting multiple traits or aspects of physiology.

Test: Variation and inheritance - Question 10

Which scientist is credited with establishing the laws of inheritance based on experiments with pea plants?

Detailed Solution for Test: Variation and inheritance - Question 10

Gregor Mendel, an Austrian monk, conducted pioneering experiments with pea plants in the mid-19th century, establishing the principles of heredity.

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