Principle of Inheritance and VariationMediumBloom L3
Question
Mendel's law of independent assortment holds good for genes situated on the
Options
A.non-homologous chromosomes
B.homologous chromosomes
C.extra nuclear genetic element
D.Same chromosome
Solution
Sol.(a) [Key Concept: Independent Assortment — Non-homologous Chromosomes] Mendel's law of independent assortment holds for genes situated on NON-HOMOLOGOUS (different) CHROMOSOMES. When genes are on different chromosomes, the orientation of each homologous pair during meiosis I is independent of other pairs, leading to random combination of alleles in gametes. The law DOES NOT hold for genes on the SAME chromosome (they are linked and tend to be inherited together), or extranuclear elements (inherited by maternal inheritance).
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