The second strand of a chromosome is a copy of the genetic information for that cell.
There are 2 strands so that when the cell divides, there is one copy of each chromosome for each offspring cell.
The chromosomes have to split and go to opposite sides of the cell.
The original and duplicated chromosomes attach to the cell membrane or the plasma membrane before the cell divides in half during binary fission in prokaryotes. This ensures that each daughter cell receives a complete set of chromosomes.
After mitosis each daughter cell contains 46 chromosomes as the DNA replicates itself before the cell divides
When meiosis begins at Gap 1 phase (G1) the cell of a human has 46 chromosomes or 2n.
Chromosomes condense into an X shape before mitosis. During prophase, the chromatin in the nucleus begins to condense and coil, forming distinct X-shaped structures known as chromosomes. This condensation allows the chromosomes to be easily moved and segregated during cell division.
Before the S phase of the cell cycle, chromosomes appear as single strands of DNA. After the S phase, they replicate and become double-stranded, forming sister chromatids.
The chromosomes have to split and go to opposite sides of the cell.
The original and duplicated chromosomes attach to the cell membrane or the plasma membrane before the cell divides in half during binary fission in prokaryotes. This ensures that each daughter cell receives a complete set of chromosomes.
So that the new cells have the same chromosomes as the parent cells.
After mitosis each daughter cell contains 46 chromosomes as the DNA replicates itself before the cell divides
When meiosis begins at Gap 1 phase (G1) the cell of a human has 46 chromosomes or 2n.
Chromosomes and sister chromatids are joined strands of duplicated genetic material. A chromatid is one copy of a duplicated chromosome which, before replication, is composed of one DNA molecule.
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During meiosis, chromosomes duplicate through a process called DNA replication. This involves the separation of the two strands of the DNA molecule and the synthesis of new complementary strands. This results in two identical copies of each chromosome, known as sister chromatids, which are then separated during cell division.
Chromosomes condense into an X shape before mitosis. During prophase, the chromatin in the nucleus begins to condense and coil, forming distinct X-shaped structures known as chromosomes. This condensation allows the chromosomes to be easily moved and segregated during cell division.
Chromosomes and sister chromatids are joined strands of duplicated genetic material. A chromatid is one copy of a duplicated chromosome which, before replication, is composed of one DNA molecule.
The word chromatin matches what you are looking for. The DNA looks like this before it condenses before the cell divides. It is open so that the genes can be active.