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Diploid is the designation given to cells with two sets of chromosomes; this is characteristic of somatic cells. In humans, this is 46 chromosomes (or 23 pairs).

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Ductal is a term used to describe channels leading from glands or organs in the body. Ductal is commonly referenced in discussion of lactiferous ducts, which are responsible for carrying milk from the mammary gland to the nipple of a breast.