GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
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Possible causes due to Point Mutation
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deletion, insertion and substitution
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adenine, thymine, cytosine, guanine
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deletion, insertion and amino acid synthesis
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proteins, amino acids, DNA
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Explanation:
Detailed explanation-1: -Insertions and deletions An insertion mutation occurs when an extra nucleotide is added to the DNA strand during replication. This can happen when the replicating strand “slips, ” or wrinkles, which allows the extra nucleotide to be incorporated (Figure 2). Strand slippage can also lead to deletion mutations.
Detailed explanation-2: -The most common mutations occur in two ways: 1) a base substitution, in which one base is substituted for another; 2) an insertion or deletion, in which a base is either incorrectly inserted or deleted from a codon.
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