100 100 100 100 100 100 100 100 100 SIVcpzLB7 SIVcpzMB66 HIV-1 MA HIV-1 M/B 100 100 100 -SIVcpzCAM3 SIVcpzCAM5 SIVcpZUS HIV-1 N HIV-1 N SIVcpZEK505 SIVcpzMT145 SIVcpZGAB2 SIVcpZGAB1 SIVcpzCAM13 HIV-1 O HIV-1 O SIVcpZTAN1 SIVcpZTAN2 SIVcpZTAN3 SIVcpZANT Consider this published phylogenetic tree of HIV-1 (Human Immunodeficiency Virus) strains M/A, M/B, N and O, and several SIVcpz strains (Simian Immunodeficiency Virus of chimpanzees). Don't mind the colors. Which of the following is an accurate statement of relationships? The different HIV-1 strains (HIV-1 M/A, HIV-1 M/B, HIV-1 N and HIV-1 O) form a monophyletic group that uniquely infects humans. HIV-1 O is more closely related to SIVcpZTAN1 than to HIV-1 M/A. HIV-1 M/A and HIV-1 M/B are more closely related to HIV-1 N than to any chimpanzee-borne SIVcpz strain. The HIV-N clade and the HIV-1 M/A, HIV-1 M/B clade are each more closely related to particular chimpanzee-borne SIVcpz strains than they are to each other.

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A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.