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.
The CFTR gene is located on the long arm of chromosome 7 at position 7q31.2. Geneticists use maps to describe the location of a particular gene on a chromosome. One type of map uses the cytogenetic location to describe a geneâs position.The cytogenetic location is based on a distinctive pattern of bands created when chromosomes are stained with certain chemicals.he chromosome on which the gene can be found. The first number or letter used to describe a geneâs location represents the chromosome. Chromosomes 1 through 22 (the autosomes) are designated by their chromosome number.