The meaning of the name Tahir is Virtuous. The origin of the name Tahir is Arabic. This is the culture in which the name originated, or in the case of a word, the language. People who like the name Tahir also like: Tariq, Amir, Tamir, Henry, Owen, Taariq, Boden. Aisha, Amira, Alima, Nadira, Nasya, Genevieve, Kailani.
Copying occurs at a localized region called the replication fork, which is a Y shaped structure where new DNA strands are synthesised by a multi-enzyme complex. Here the DNA to be copied enters the complex from the left. One new strand is leaving at the top of frame and the other new strand is leaving at bottom. The first step in DNA replication is the separation of the two strands by an enzyme called helicase.
prometaphase. Prometaphase is the second phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prometaphase, the physical barrier that encloses the nucleus, called the nuclear envelope, breaks down. The breakdown of the nuclear envelope frees the sister chromatids from the nucleus, which is necessary for separating the nuclear material into two cells.