The Codon UGA Specifies

question 68

Multiple Choice

The codon UGA specifies

• A) "start" in the "universal" genetic code.
• B) the amino acid glycine in human mtDNA.
• C) formyl-methionine in mtDNA.
• D) both "stop" in the "universal" genetic code and the amino acid tryptophan in human mtDNA.
• E) methionine in mtDNA genetic code.

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Definitions:

Subducted Plate

A tectonic plate that is being forced downward into the mantle beneath another plate at a convergent boundary.

Continental Rifting

The process where a continental landmass breaks apart due to tectonic forces, often leading to the formation of new ocean basins.

Continent Intact

This term is unclear but may refer to a continent remaining geologically stable or undivided by significant natural events over time.

Continental Rift

A linear zone where the Earth's crust and lithosphere are being pulled apart and is the initial stage of a continental break-up leading to the formation of a new ocean basin.