Which of the following is an example of a frameshift mutation?
a deletion of a codon
missense mutation
silent mutation
deletion of one nucleotide

-deletion of one nucleotide

Explanation:

Frameshift mutations can be defined as mutations that lead to change the reading frame due to change in codon sequence of a gene. These mutations can be caused by addition or deletion of one or more (but not 3 or divisible by three) nucleotides from a gene.

As codons are made up of three nucleotides, due to deletion or addition codon sequence gets changed and makes a completely different gene product.

Thus, the correct answer is 'last option.'

a

explanation:

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure