Mitosis is when a single cell splits apart and creates two new cells that are identical to the parent cell.
Epigenetics is the study of how DNA methylation and alterations to chromosomal proteins affect a gene or group of genes express themselves. For changes in a gene's expression, both of these are need.
In a biological process called DNA methylation, methyl groups are added to the DNA molecule. A DNA segment's activity can be altered by methylation without the sequence changing. DNA methylation usually inhibits transcription of genes when it occurs in a gene promoter.
Epigenetics literally translates to "along with changes in genetic sequence." Any procedure that modifies gene activity without altering DNA sequence and results in modifications that can be passed on to daughter cells is now included in the term. Is called Epigenetics.
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B. He found similar fossils on different continents that are separated by oceans.
Plants will usually droop their leaves and wilt on a hot day due the amount of water they're not receiving. This can be advantageous to a plant because this releases moisture in the air called <span>transpiration.
Hope that helps. -UF aka Nadia</span>
18mg for a 19-50 year old adult female.