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  4. Which of the following chromosomal mutation are most likely to take place when homologous chromosomes are undergoing synapsis?

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Q. Which of the following chromosomal mutation are most likely to take place when homologous chromosomes are undergoing synapsis?

ManipalManipal 2006

Solution:

Deletion and duplication occur in homologous chromosomes usually during mitosis or meiosis. In deletion some part of chromosome is lost and in duplication a piece of chromosome is copied next to an identical section, thus, increasing chromosome length.