The other object is a small charged sphere that is free to move (we neglect the force of. gravity on this sphere). According to Coulombâs law, these two like charges repel each. another. That is, the small sphere experiences a repulsive force away from the van de. Graaff sphere. Figure 2.2.2 (a) Two charges of the same sign that repel one another because of the. âstressesâ transmitted by electric fields.
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (mRNA) by the enzyme RNA polymerase.
Confidence votes 261. Transcription is the synthesis of RNA under the direction of DNA. The type of RNA used during transcription is the messenger RNA. The mRNA carries a genetic message from the DNA to the protein-synthesizing machinery of the cell.Then, translation is the actual synthesis of a polypeptide, which occurs under the direction of mRNA.onfidence votes 261. Transcription is the synthesis of RNA under the direction of DNA. The type of RNA used during transcription is the messenger RNA. The mRNA carries a genetic message from the DNA to the protein-synthesizing machinery of the cell.