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nucleic acid
This term refers specifically to the biopolymers DNA and RNA. In scientific discourse, it is treated as a mass noun when referring to the chemical substance in general, though it can be used countably when discussing different types or specific molecules of nucleic acids.
Because it is a technical term from biochemistry, it is almost exclusively used in formal, academic, or medical registers. It is rarely used in casual conversation unless the speaker is discussing genetics or molecular biology.
Ý nghĩa
Ví dụ
DNA and RNA are the two primary types of nucleic acid found in cells.
The lab technician is extracting nucleic acid from the tissue sample.
Wait, is the virus genetic material a single stranded nucleic acid?
Nucleic acid amplification tests are highly sensitive for detecting pathogens.
Nucleic acid amplification tests are highly sensitive for detecting pathogens.
I wonder how the nucleic acid structure determines the protein sequence.
The researcher focused on the stability of the nucleic acid under high heat.
We need to purify the nucleic acid before we can begin the sequencing process.
The textbook explains that every living cell contains nucleic acid.