True
DNA duplication is the process by which an exact copy of the DNA molecule is produced. Chromosome duplication refers to the replication of entire chromosomes, including their DNA content. Both processes are essential for cell division and growth, ensuring that each new cell receives a complete set of genetic information.
Interphase
During DNA replication, the entire DNA molecule is duplicated, which includes the chromosomes. However, chromosomes only become visible as distinct structures during cell division, when they condense and organize into a compact form. Outside of cell division, chromosomes exist in a less condensed state called chromatin, which allows the DNA to be accessible for gene expression and other cellular processes. So, while DNA replication leads to chromosome duplication, the chromosomes themselves may not appear as distinct entities outside of cell division.
Daughter Chromosomes
Chromosomes duplicate during the S phase of interphase in the cell cycle. This is when DNA replication occurs, resulting in each chromosome being duplicated to form two sister chromatids held together at the centromere.
When a cell duplicates, both the DNA and the chromosomes duplicate.
True
chromosomes
After DNA duplicates, there are twice the number of chromosomes present in the nucleus.
DNA duplication is the process by which an exact copy of the DNA molecule is produced. Chromosome duplication refers to the replication of entire chromosomes, including their DNA content. Both processes are essential for cell division and growth, ensuring that each new cell receives a complete set of genetic information.
DNA duplicates during the S phase of the cell cycle.
Interphase
A cell's DNA duplicates during the S phase of the cell cycle.
The process in which DNA duplicates itself is called DNA replication. This process is an important factor in biological inheritance.
DNA duplicates during the S phase of the cell cycle, which occurs before cell division in the interphase stage.
During DNA replication, the entire DNA molecule is duplicated, which includes the chromosomes. However, chromosomes only become visible as distinct structures during cell division, when they condense and organize into a compact form. Outside of cell division, chromosomes exist in a less condensed state called chromatin, which allows the DNA to be accessible for gene expression and other cellular processes. So, while DNA replication leads to chromosome duplication, the chromosomes themselves may not appear as distinct entities outside of cell division.
Daughter Chromosomes