Question

How do key events of meiosis explain Mendel’s law of segregation and independent assortment?

How did T.H Morgan’s drosophila experiment validate chromosome theory of inheritance?

How did analysis of nondisjunction validate the chromosome theory of inheritance?

Answer 1

The key events of meiosis explain Mendel's law of segregation and independent assortment by following-

Law of segregation states that allele pair separate during gamete formation . They can unite randomly in fashion they want. Same happens in meiosis . In meiosis-I , the way homologous chromosomes which consists allele pairs on them are separated from each other during the process shows law of segregation. In Anaphase-I of meiosis-I , homologous chromosomes are separated . This is done after the recombination of genetic material is being processed in the cell cycle.

Law of independent assortment states that alleles of different genes separate independently from each other without being affected by the other. Now during the metaphase of meiosis-I, the homologous chromosome pair aligns in a random fashion independent of other pairs present in the cell during the process.This means they do not get influenced by other So these events are explained by Mendel's laws.

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