HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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part of a chromosome from a non homologous pair gets added into a chromosome
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portions of two non homologous chromosomes switch places.
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chromosomes don’t separate properly during meiosis
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Detailed explanation-1: -Insertion An insertion, as related to genomics, is a type of mutation that involves the addition of one or more nucleotides into a segment of DNA. An insertion can involve the addition of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome.
Detailed explanation-2: -So, the correct answer is ‘Translocation’.
Detailed explanation-3: -Rearrangement of the chromosomal segment between two non-homologous chromosomes is called as translocation; it differs from cross-over as it involves two non-homologous chromosomes while cross over includes a pair of homologous chromosomes which makes option A incorrect and B correct.
Detailed explanation-4: -The exchange of segments of non-homologous chromosomes is called Translocation. Note:In meiosis, the genes rearrange between the two chromosomes in each pair.