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How do they divide in the mitotic stages? Where does the RNA come from?

2007-01-14 22:16:07 · 5 answers · asked by ibid 3 in Science & Mathematics Biology

5 answers

Blood cells do not divide or replicate. Its created in the bone marrow. All blood cells come from the same kind of stem cell (found in the marrow), which has the potential to turn into any kind of blood cell. They then seep into the blood that passes through the bones and on into the bloodstream. Different blood cells have different lifespans, e.g. red blood cells can last for 120 days before they expire. And the body will make more cells as and when needed based on a hormonal feedback system.

2007-01-15 00:40:52 · answer #1 · answered by maverick 2 · 0 0

blood cells are produced in your marrow, when they leave the marrow, the dna is squeezed out of the cell, that is why they can carry oxygen in the hollow where the dna was. Before leaving the marrow, they have the dna, and reproduce inside the bone. Better look it up though, been a while since biology.

2007-01-15 06:20:23 · answer #2 · answered by Nickythewire 2 · 0 1

first blood cells are red blood cells & white blood cells
red blood cells really contain a nucleaus at the beginnig of its formation but later this nucleaus disappears due to increase the area inside each cell to provide a space for haemoglobin pigment so red blood cells can't divide due to absence of nucleus so they are formed by bone marrow.
white blood cells contain a nucleaus so they are able to divide as any other normal cell but they complete their maturation in bone marrow also.

2007-01-15 09:28:08 · answer #3 · answered by davybrr 2 · 0 0

They are made in our bone marrow?

2007-01-15 06:20:22 · answer #4 · answered by Tumbleweed 5 · 0 0

MAGIC

2007-01-15 06:18:49 · answer #5 · answered by chewanddoyle 2 · 0 1

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