OBJECTIVE LIFE SCIENCE
APPLIED BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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when a codon is substituted with a different codon in mRNA
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when a nitrogen base is substituted with a different nitrogen base in DNA
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when a nitrogen base is added to DNA or deleted from DNA
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when a gene breaks and moves to another chromosome
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Detailed explanation-1: -A frameshift mutation in a gene refers to the insertion or deletion of nucleotide bases in numbers that are not multiples of three. This is important because a cell reads a gene’s code in groups of three bases when making a protein.
Detailed explanation-2: -A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read.
Detailed explanation-3: -Definition. A point mutation occurs in a genome when a single base pair is added, deleted or changed.
Detailed explanation-4: -Deletions A deletion, resulting in a frameshift, results when one or more base pairs are lost from the DNA (see Figure above). If one or two bases are deleted the translational frame is altered resulting in a garbled message and nonfunctional product.