sister chromatids are introduced during the (S) or synthesis phase of cell division. The two sister chromatids are separated from each other into two different cells... O <--> O
during mitosis or during the second division of meiosis.
So no, they are apart of a phase, but aren't the entirety of cell division.
Hi, Natural Killer Cells secrets chemicals that cause pores to form in the membrane of abnormal cells, leading to cell death.
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The gene that controls production of white blood cells.
Carbon dioxide is a by-product of respiration while oxygen is a by product of photosynthesis.
It will increase at high elevations.