Used blood leaves the breasts through the veins and is pumped back to the heart and lungs to be refreshed. Lymph must also be refreshed and recycled. Lymph drains away from your breasts through the lymphatic system, which is made up of lymphatic channels and lymph nodes.
exists and is an alternate of . Chromosomes are located in the nucleus of a cell in eukaryotes. In prokaryotes (which lack a cell nucleus) chromosomes are circular in shape usually found attached to the plasmid membrane. Smaller circular DNA known as plasmids are also found in the prokaryotic cells and are thought of as smaller versions of chromosomes.
A chromosome is a long packaged DNA sequence. The human diploid (DNA From both mother and father) cell has 46 of these. A chromosome contains thousands of genes which are the â¦ sequences in the actual DNA that code for end products such as proteins. The nucleus is the control center of the cell. It tells the cell how to function and chromosome development. Chromosomes contain the genetic or hereditary instructions â¦ .