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Everyday Science · Cell Biology & Microorganisms · page 35 of 36

DNA, Genes & Genetics MCQs with Answers

Includes 12 past paper MCQs (marked).

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DNA, Genes & Genetics MCQs (341–350)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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  1. 341.

    One gene interferes with another at a different locus is called?

  2. 342.

    Nucleic acid tagged with a radioactive substance is called?

  3. 343.

    What is the phenotypic ratio in the F2 generation of incomplete dominance?

  4. 344.

    In general, the Cancer in a human body is caused by changes to:

  5. 345.

    What is the name of the event during gametogenesis when pieces of chromosomes may reunite at correct sites but with wrong ends?

  6. 346.

    How many different types of gametes will be produced by plants having a genotype AaBb?

  7. 347.

    The basic physical and functional unit of heredity is called _?

  8. 348.

    Discontinuous variation refers to the presence of distinct, separate categories or forms of a trait, with no intermediate forms. Which one of the following is not an example of discontinuous variation?

  9. 349.

    The characteristics that an organism inherits from its parents are called?

  10. 350.

    Which of the following is used to transfer genes to higher transgenic plants?

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