GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nucleotide/Base is removed
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Nucleotide/Base is inserted
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Nucleotide/Base is replaced with another
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None of the above
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Detailed explanation-1: -In the case of deletion mutations, one nucleobase is removed from the DNA sequence usually during DNA replication. Frameshift: this type of mutation occurs as a result of deletion point mutations.
Detailed explanation-2: -A deletion, as related to genomics, is a type of mutation that involves the loss of one or more nucleotides from a segment of DNA. A deletion can involve the loss of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome.
Detailed explanation-3: -An insertion mutation occurs when an extra base pair is added to a sequence of bases. A deletion mutation is the opposite; it occurs when a base pair is deleted from a sequence. These two types of point mutations are grouped together because both of them can drastically affect the sequence of amino acids produced.
Detailed explanation-4: -Frame-shift mutations occur when a base is added or removed from the sequence.