The term may refer to any of three structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, pentane means exclusively the n-pentane isomer; the other two being called isopentane (methylbutane) and neopentane (dimethylpropane). Cyclopentane is not an isomer of pentane.uch reactions are unselective; with n-pentane, the result is a mixture of the 1-, 2-, and 3-chloropentanes, as well as more highly chlorinated derivatives.
The four types of chromosomal mutation are deletion, duplication, inversion and trasnlocation. Deletion is the loss of all or part of a chromosome.Duplication is where a segm â¦ ent of a chromosome is copied. Inversion is where a section of a chromosome is reversed.he four types of chromosomal mutation are deletion, duplication, inversion and trasnlocation. Deletion is the loss of all or part of a chromosome. Duplication is where a segm â¦ ent of a chromosome is copied. Inversion is where a section of a chromosome is reversed.
1 Missense mutations or nonsynonymous mutations are types of point mutations where a single nucleotide is changed to cause substitution of a different amino acid. 2  This in turn can render the resulting protein nonfunctional.utations in the structure of genes can be classified as: , 1  such as those affecting a small gene in one or a few nucleotides, including: 2  Point mutations, often caused by chemicals or malfunction of DNA replication, exchange a single nucleotide for another. 3  These changes are classified as transitions or transversions.