DNA is always present in every stage of the cell cycle...reproducing it is the whole purpose of the cell cycle!
In interphase, there are three phases: the cell grows (G1), duplicates each strand of DNA (S), and gets ready for mitosis (M).
During the first part of interphase the chromosomes are long and thin, and single-stranded, making them very hard to see without a very powerful microscope. During the last 2 stages of interphase, the DNA is duplicated but is still long and thin. It is only in the prophase stage of mitosis that they are condensed enough to often be seen with a "normal" microscope on high power (400x) . By the end of mitosis, the doubled-chromosomes have been pulled apart and into opposite ends of the parent cell. When the cell has finished dividing, each "daughter cell" has the original number of single-stranded chromosomes. The chromosomes "uncoil", and the cell matures during G1 phase of interphase.
Many people believe that DNA and/or Chromosomes (Chromosomes are made of DNA, remember.) are only present during mitosis. They just get fatter during mitosis by coiling tighter. Thus they are more easily seen. BUT.. just because you don't see them in interphase doesn't mean they aren't there!
In plant or animal cells, during interphase, the nucleus is not undergoing division. The nucleus will be visible and the nuclear membrane will also be visible.
Red blood cells have nucleus's all throughout Interphase as well as at the end of Telophase during/after Cytokenesis.
chromatin
Chromosomal replication occurs during the S phase of the cell cycle, which is part of interphase. During this phase, the DNA in a cell is replicated to ensure that each daughter cell will receive a complete set of chromosomes.
during interphase
In plant or animal cells, during interphase, the nucleus is not undergoing division. The nucleus will be visible and the nuclear membrane will also be visible.
Red blood cells have nucleus's all throughout Interphase as well as at the end of Telophase during/after Cytokenesis.
chromatin
DNA is kept in the nucleus of eukaryotic cells.
Chromosomal replication occurs during the S phase of the cell cycle, which is part of interphase. During this phase, the DNA in a cell is replicated to ensure that each daughter cell will receive a complete set of chromosomes.
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During the interphase.
during interphase
during interphase
in the interphase
Interphase is the first stage of the cell cycle
Only during the division stages of a cells life will chromosomes form. During Interphase the cells DNA is in the unorganized form of chromatin.