Answer:
D
Explanation:
Methanogens are prokaryotes and therefore have prokaryotic cells. They are single-celled archaea. They are found in hypoxic conditions like the first stomach of ruminants where they digest molecules like cellulose and produce methane as a byproduct. The rest are composed of eukaryotic cells which are much larger than prokaryotic cells and their organelles are membrane-bound (unlike prokaryotes).
Answer:
Mitochondrial DNA is the small circular chromosome found inside mitochondria. The mitochondria are organelles found in cells that are the sites of energy production. The mitochondria, and thus mitochondrial DNA, are passed from mother to offspring.
Purines bases are ADENINE(A) and GUANINE(G), and pirimidines bases are CITOSINE(C) and TIMINE(T).
In DNA, with ADENINE complementary base is TIMINE, and with GUANINE complementary base is CITOSINE.
