Why a mastectomy may be necessary. A mastectomy is mainly used as a treatment for breast cancer or to reduce the risk of breast cancer developing. Although breast cancer in men is much rarer than female breast cancer, it can also be treated with a mastectomy. Treating breast cancer.
Bacteria. The Bacteria are considered as unicellular prokaryotic organisms. Unlike eukaryotes, bacteria cells lack an organized nucleus, mitochondria, chloroplasts and other membrane bounded organelles. Bacterial cell has only a circular DNA, which does not associate with histone protein.Bacteria do not show sexual reproduction methods.nlike eukaryotes, bacteria cells lack an organized nucleus, mitochondria, chloroplasts and other membrane bounded organelles. Bacterial cell has only a circular DNA, which does not associate with histone protein. Bacteria do not show sexual reproduction methods.
Choose all that apply. Choose all that apply. 1 ) Archaea are the only types of organisms currently believed to fall into the classification of prokaryotes. 2) Archaea share similar structural features with bacteria, but are not bacteria. 3) Archaea share similar biochemical features with eukaryotes, but are not eukaryotes. 4) Archaea typically have multiple circular chromosomes as their genetic material. 5) Archaea perform their complex biochemical functions in distinct compartments called organelles.