During mitosis the chromosomes line up in the middle of the cell are copied all of the above are wound up on histone spools to keep them from tangling are pulled apart by molecular workers
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
Question 11
During mitosis a cell divides to form two daughter cells and the daughter cells have copy of every chromosomes and then separated to form new cells.
During metaphase of mitosis chromosomes are aligned in the middle of the cell forming metaphase plate.
During anaphase stage of mitosis the centromere divides and the sister chromatids separates which are pulled by spindle fibres called as disjunction of chromatid fibre.
The chromosomes are bound by histone proteins in kinetochore region which keep them tangling.
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