DNA molecule segment is : TTA-CGC-AAG The mutated DNA segment is TTC-GCA-AG.This is an example of a ________ mutation.
Answers
Answer:
deletion mutation
Explanation:
TTA-CGC-AAG The mutated DNA segment is TTC-GCA-AG.This is an example of a deletion mutation.
Answer:
This is an example of a deletion mutation.
Explanation:
A point mutation causes an error in one nucleotide. The entire base pair may be missing or only the backbone nitrogen base. For point deletions, one nucleotide has been deleted from the sequence. For example, if the original sequence is ATG-AGT-CGT-ATA-TAA, it codes for methionine, serine, arginine, isoleucine, and finally a STOP codon (tells the cell to stop making the protein).
After deleting the dots, the new sequence could be ATG-AGC-GTA-TAT-AA. In this case, T is deleted. The new amino acid sequence is methionine, serine, valine, tyrosine, and then the final AA codes for nothing.
Although some amino acids may be the same, the deletion creates a frameshift that causes the change.
It is a type of frameshift mutation characterized by the loss of one or more nucleotides from a segment of DNA.
Extra information about deletion mutation:
An example of a deletion mutation is DiGeorge syndrome.
DiGeorge syndrome is a disorder caused by the deletion of a small segment of chromosome 22.
This syndrome causes growth retardation, bluish skin color, poor circulation, underdeveloped jaw, breathing problems, poor muscle development and digestive problems.Other genetic diseases caused by deletion mutations include cystic fibrosis and cat crying syndrome.
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