Chromosomes are replicated in the nucleus of a cell. A nucleus is a membrane-enclosed organelle found in eukaryotic cells. It contains most of the cell's genetic material.
The chromosomes are replicated during interphase.
Chromosomes are replicated during the S phase of the cell cycle.
Replicated chromosomes have undergone DNA replication, producing two identical sister chromatids joined by a centromere. Unreplicated chromosomes have not undergone DNA replication and consist of a single chromatid. Replicated chromosomes are found during the S phase of the cell cycle, while unreplicated chromosomes are present in the G1 phase.
The failure of replicated chromosomes to separate is called nondisjunction. This can lead to an abnormal number of chromosomes in daughter cells during cell division, which can result in genetic disorders such as Down syndrome.
Chromosomes are formed from condensed chromatin as a cell divides during mitosis. Chromosomes are the structures that contain the genetic material (DNA) and are replicated and divided equally between the daughter cells to ensure proper genetic inheritance.
interphase
The centromere is the structure that connects the replicated chromosomes during cell division. It plays a crucial role in ensuring that each daughter cell receives the correct number of chromosomes.
The chromosomes are found in the nucleus.
Metaphase
There are a total of 46 replicated chromosomes (plus 46 original), since metaphase precedes the actual division in anaphase, and each daughter cell receives 46 chromosomes in mitosis.
sister chromatids
mitosis is the process by which the DNA of a cell is copied, so chromosomes replicated throughout the process