Chromatin refers to the dna and the proteins associated with it. It's the dna in the nucleus that is uncondensed.
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The answer to your question:
The niche of an organism is the functional role that it plays within an ecosystem.
Answer:
Tragically, Andrew died after being struck by a boat while snorkeling on June 8, 2014. Andrew's family and friends formed the Andrew “Red” Harris Foundation to make sure he would not be forgotten and to build his legacy.
Explanation:
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Meiosis increases genetic variation due to random segregation which occurs.
In anaphase I of meiosis, the homologous pairs (one maternal and one paternal chromosome) are moved apart to opposite ends of the cell and this process occurs random. This allows the formation of gametes with different sets of homologues. In this phase sister chromatids remain attached at their centromeres (not segragated as in mitosis).
