Which of the Following Explains the Unique Mechanism by Which $\delta$

question 6

Multiple Choice

Which of the following explains the unique mechanism by which $\delta$ -aminolevulinic acid is synthesized in most bacteria, archaea and plants?

• A)glutamic acid is attached to its tRNA and then reduced to glutamate-1-semialdehyde
• B)glutamic acid undergoes reduction and cyclization to \(\Delta\)¹-pyrroline-5-carboxylate
• C)glutamic acid undergoes carboxylation to \(\gamma\)-carboxyglutamic acid
• D)glutamic acid condenses with itself via the \(\sigma\)-carboxyl and amine group
• E)none of the above

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Definitions:

DNA Replication

The biological process of producing two identical replicas of DNA from one original DNA molecule, essential for cell division.

Complementary Base Pairing

The pairing of bases by hydrogen bond formation in double-stranded nucleic acids according to the base pairing rules: adenine pairs with thymine (in DNA) or uracil (in RNA), and guanine pairs with cytosine.

Purines

A group of heterocyclic aromatic organic compounds, including adenine and guanine, that are key components of DNA and RNA.

Pyrimidines

A type of organic compound, characterized by a single six-membered ring, that includes cytosine, thymine, and uracil, essential components of nucleic acids.