Sign in to receive recommendations (Learn more) Lymph is a clear fluid that travels through your body's arteries, circulates through your tissues to cleanse them and keep them firm, and then drains away through the lymphatic system. Lymph nodes are the filters along the lymphatic system. Their job is to filter out and trap bacteria, viruses, cancer cells, and other unwanted substances, and to make sure they are safely eliminated from the body. Axillary lymph nodes Larger Version.
Share. By Regina Bailey. Definition: Mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division. Chromatin is located in the nucleus of a cell. During prophase of mitosis, chromatin fibers become coiled into chromosomes with each chromosome having two chromatids joined at a centromere.
DNA exists in Chromatin form in the nucleus. The chromatin condenses to form Chromosomes during cell division. Inside the nucleus. The chromatin in the nucleus forms a ' beads-on-string ' structure or Nucleosome. The 'beads' are octamer histone proteins and the 'string' is the double-stranded DNA.About 147 base pairs wrap around the 8-part histone protein to form a nucleosome. The nucleosomes condense to form a chromatin fiber.Chromatin fiber organises into Chromosomes upon cell division. The chromatin is elaborately arranged and paired in mitosis. Sister chromatids are formed in case of meiosis along with pairing.he nucleosomes condense to form a chromatin fiber. Chromatin fiber organises into Chromosomes upon cell division. The chromatin is elaborately arranged and paired in mitosis. Sister chromatids are formed in case of meiosis along with pairing.