Independent chromosome duplication occurs during the S (synthesis) phase of the cell cycle. This is when DNA replication takes place, resulting in two identical sister chromatids attached at the centromere.
the S phase. this is in interphase between G1 and G2 of interphase
DNA is replicated during interphase, and chromosomes form or condense during the prophase. So the genes and chromosomes are duplicated at the beginning of mitosis, during the interphase, although you can't see them as chromosomes until the prophase, before the cell splits.
technically the chromosomes copy during interphase right before metaphase I of meiosis I so during Meiosis I the chromosomes are duplicated and not until metaphase II during meiosis II are the sister chromatids separated.
Chromosomes duplicate during the S phase of interphase, which occurs before mitosis. Each chromosome replicates to form two identical sister chromatids that are held together at the centromere. These sister chromatids are then separated and pulled to opposite poles of the cell during mitosis.
During Interphase the DNA is not in the form of chromosomes. It is not until Prophase that it condenses and chromosomes become visible.
the S phase. this is in interphase between G1 and G2 of interphase
The phase of mitosis where the chromatin fibers duplicate and condense into visible chromosomes is Interphase. Interphase is the first stage of the cell cycle.
DNA is replicated during interphase, and chromosomes form or condense during the prophase. So the genes and chromosomes are duplicated at the beginning of mitosis, during the interphase, although you can't see them as chromosomes until the prophase, before the cell splits.
technically the chromosomes copy during interphase right before metaphase I of meiosis I so during Meiosis I the chromosomes are duplicated and not until metaphase II during meiosis II are the sister chromatids separated.
DNA condenses into chromosomes during the prophase stage of the cell cycle.
DNA condenses into chromosomes during the prophase stage of the cell cycle.
Chromosomes duplicate during the S phase of interphase, which occurs before mitosis. Each chromosome replicates to form two identical sister chromatids that are held together at the centromere. These sister chromatids are then separated and pulled to opposite poles of the cell during mitosis.
Chromosomes replicate when DNA replicates during the S phase (synthesis) of of the cell cycle.
prophase
Rod-shaped chromosomes are first visible during prophase of mitosis. At this stage, the chromosomes condense and become visible as rod-shaped structures in preparation for cell division.
Late interphase in Meiosis 1 This is the first question i ever answer correctly by the way. I can tell your sexy.
During Interphase the DNA is not in the form of chromosomes. It is not until Prophase that it condenses and chromosomes become visible.