what type of mutation is likely to cause the most dramatic phenotypic change

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08-08-2017
Biology

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what type of mutation is likely to cause the most dramatic phenotypic change

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Yna9141 Yna9141 · Answer 1 · 2017-08-20T23:56:46+02:00

Mutation is a process that results to changes in the DNA. This is caused either by the error when copying the DNA from the parent cell or some other environmental factors. There are several types of mutations such as: (1) insertion, (2) deletion, (3) substitution, (4) frameshift.

The answer to the question above is FRAMESHIFT. This is a result of insertion and deletion, and juggling of the codons so that the DNA does not anymore carry the same message had it not been mutilated. The DNA is divided into groups of three codon, in the frameshift, arrangement of this codon can possibly rearrange, letters are jumbled, not making sense at all.

avantikar avantikar · Answer 2 · 2019-09-20T13:55:58+02:00

The mutation which is most likely to cause the dramatic phenotypic change is single nucleotide insertion that changes codon groupings.

Further Explanation:

The change in the sequences of deoxyribonucleic acid (DNA) is known as mutations. It can occur due to mistakes while making a copy of deoxyribonucleic acid (DNA) or due to some environmental factors. At the time of replication, errors can occur in the sequences of deoxyribonucleic acid which results in mutations.

Depending upon the changes in the sequences of DNA mutation can be of various types:

Insertion mutation is the type of mutation in which extra base pairs are inserted in the sequence of deoxyribonucleic acid.
Deletion mutation is the type of the mutation in which a segment or base pair of DNA is vanished or deleted.
Substitution mutation is the type of mutation that exchanges one base with another base that changes in single base. Sickle cell anemia is the best illustration for this mutation as one codon changes with another that encodes for different amino acid which can cause a small change in the protein produced.
Frameshift mutation is the type of mutation in which the reading frame of codons changes due to insertion or deletion.

The phenotypic change is caused by the frameshift mutation because this mutation leads to change in grouping of codons as the single nucleotide is inserted or deleted from the frame.

Learn more:

Learn more about different types of mutations which can occur within the body. https://brainly.com/question/1901841
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Learn more about Friedrich Mischer's contribution to the discovery of the genetic code https://brainly.com/question/4037964

Answer Details:

Grade: College Biology

Subject: Biology

Chapter: Genetics

Keywords:

Mutations, codons, nucleotides, DNA, insertion mutation, deletion mutation, substitution mutation, frameshift mutation, sickle cell anemia, proteins, amino acids.