Mutations, which alter nucleotide sequence within a gene are |
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a) |
Frameshift mutation |
b) |
Base pair substitutions |
c) |
Both (a) and (b) |
d) |
None of these |
Mutations, which alter nucleotide sequence within a gene are |
|||
a) |
Frameshift mutation |
b) |
Base pair substitutions |
c) |
Both (a) and (b) |
d) |
None of these |
(c) Frameshift mutations are the mutations caused by insertion (i.e., addition) or deletion of one or more nitrogen bases in the DNA or RNA. This type of mutation alters the nucleotide sequences in all the genes and hence, the genetic code is changed totally, fro the point of mutation which results in the change in biochemical behaviour of the genes. Base pair substitution mutations involve substitution of a aitrogen base by another base or by some derivative of nitrogen base. |