The mitochondrial genome of Chlamydomonas contains the lowest number of genes, 1

Question

The mitochondrial genome of Chlamydomonas contains the lowest number of genes, 12, of all the species of green algae. However, only 7 proteins are produced inside these mitochondria. Which of the following statements is the best explanation for why only 7 proteins are made from the 12 genes in Chlamydomonas mitochondria? A. Five of the genes are redundant; another copy is expressed from the nuclear genome. OB. Five of the genes are transcribed, but not translated. O C. Five of the genes are nonfunctional "pseudogenes". D. Five of the genes are coding for proteins that are translated in the cytoplasm.

Explanation / Answer

The correct option is B. Five of the genes are transcribed, but not translated.

In chlamydomonas mitochondria, only five of the genes are transcribed, but not translated. Only 7 proteins are produced from the 12 genes in chlamydomonas mitochondria.

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