SSC MTS EXAM

Detailed explanation-1: -The muscle cell and nerve cell inherit different DNA sequences. Transcription of different genes leads to the synthesis of different proteins in the two cell types. The chromosomal DNA is rearranged and mutated so that the cell can become a muscle cell instead of a nerve cell.

Detailed explanation-2: -Human nerve cells differ from human muscle cells because different sets of genes are expressed; in each type of cell, different genes are transcribed into mRNA and translated into protein.

Detailed explanation-3: -In fact, there is a common set of genes to which they can both bind, but differences between their DNA-binding regions allow each of the two proteins to also turn on their own unique sets of genes, which is what enables one to make muscle cells while the other makes neurons.