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1. Replication is the duplication of two-strands of DNA. Transcription is the formation of single, identical RNA from the two-stranded DNA. 2. There are different proteins involved in replication and transcription. 3. In replication, the end result is two daughter cells, while in transcription, the end result is a protein molecule. 4. In transcription, DNA serves as the template for RNA synthesis.
Two - the leading strand and the lagging strand.
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the bacterium copies its single chromosome
Evolution begins with self replication. Evolution on Earth began around four billion years ago. We don't have any record of that long lost microscopic beginning, but it may have been a single molecule that could make copies of itself.
At a specific location known as the "replication fork," DNA splits or "unzips" during replication. The split of the double-stranded DNA molecule into two single strands occurs at the replication fork. Due to this division, the replication apparatus may access and duplicate each of the single DNA strands, resulting in the creation of two identical DNA molecules that each include one original and one freshly manufactured strand. DNA replication is necessary for cell division and the genetic information transfer to daughter cells.