LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It might substitute a different amino acid in the active site.
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It might exchange one serine codon for a different serine codon.
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It might result in a chromosomal translocation.
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Detailed explanation-1: -why might a point mutation in dna make a difference in the level of a protein’s activity? it might delay the rate of dna replication. it might exchange one stop codon for another stop codon. it might substitute a different amino acid in the active site.
Detailed explanation-2: -A point mutation can make a difference in the level of the protein’s activity because it changes the genetic code, which can change the amino acids incorporated into the protein. DNA is the ultimate code for proteins in the cell.
Detailed explanation-3: -Why might a point mutation in DNA make a difference in the level of a protein’s activity? It might substitute a different amino acid in the active site. The genetic code is essentially the same for all organisms.
Detailed explanation-4: -A point mutation occurs in a genome when a single base pair is added, deleted or changed. While most point mutations are benign, they can also have various functional consequences, including changes in gene expression or alterations in encoded proteins.
Detailed explanation-5: -A point mutation is going to change one nucleotide in the DNA code, this may or may not result in a changed amino acid.