Multiple choice

Which of the following are correct? P. Classical Mendelian traits are qualitative in nature. Q. Qualitative traits show discontinuous variations. R. Qualitative traits are polygenic traits. S. Qualitative traits are referred to as metric traits.

  1. P and Q

  2. P and S

  3. Q and R

  4. R and S
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A Correct answer
Explanation

Classical Mendelian traits are qualitative and show discontinuous variation (distinct categories like tall vs short). They are typically monogenic (controlled by one or few genes), not polygenic. Polygenic traits show continuous variation and are called quantitative or metric traits, not qualitative.

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