Sample image from Walther Flemming's drawings of chromosome behavior during mitosis.
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Sample image from Walther Flemming's drawings of chromosome behavior during mitosis.
Walther Flemming's drawing of chromosomes.
This image is linked to the following Scitable pages:
By the mid-nineteenth century, scientists began to realize that traits were inherited due to the passage of some substance from parents to their offspring, but they were not sure what that substance was or where it was located. We now understand that this substance is DNA. Learn how scientists discovered that DNA and its chromosomal forms carry the traits observed through generations of organisms.
Cell division, the basic means by which genetic information is passed from generation to generation, involves tightly coordinated movements of a cell's DNA. This page describes the major phases of mitosis, the most common form of cell division.
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