HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Deletion
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Duplication
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Insertion
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Invertion
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Detailed explanation-1: -If uncorrected by DNA repair enzymes, depurination may result in the incorporation of an incorrect base during the next round of replication. Figure 5: Depurination is a spontaneous mutation that occurs when a nucleotide loses a purine base. During replication, two strands of DNA separate.
Detailed explanation-2: -A deletion mutation occurs when a wrinkle forms on the DNA template strand and subsequently causes a nucleotide to be omitted from the replicated strand (Figure 3).
Detailed explanation-3: -Homologous recombination between areas of concentrated repeated sequences frequently creates deletions and duplications. Because they commonly involve more than one gene, the disorders caused by these large deletion and duplication mutations are often severe.
Detailed explanation-4: -Mutations can be of many types, such as substitution, deletion, insertion, and translocation.
Detailed explanation-5: -(deh-LEE-shun) A type of genetic change that involves the absence of a segment of DNA. It may be as small as a single base but can vary significantly in size.