1 A solid. 2  There is one unusual exception. 3  Native mercury is a mineral and is the only metal that is a liquid at normal temperatures. 4  Has a regular crystal structure. A solid. 2  There is one unusual exception. 3  Native mercury is a mineral and is the only metal that is a liquid at normal temperatures. 4  Has a regular crystal structure.
A frameshift mutation (also called a framing error or a reading frame shift) is a genetic mutation caused by indels (insertions or deletions) of a number of nucleotides in a DNA sequence that is not divisible by three.
3) Silent mutations do not affect the function of the proteins and code for different or same amino acid. Frameshift Mutations:- Mispairing of the DNA molecule causes the frameshift mutations. The changes in the single base pair nucleotide sequence usually insertion or deletion result in these mutations.