Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a section of dna
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a section of dna" is correct and usable in written English.
It can be used when referring to a specific part or segment of DNA in a biological or genetic context. Example: "Researchers identified a section of dna that is responsible for the hereditary trait."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
22 human-written examples
To build a protein, a section of DNA unwinds, exposing the nucleotide bases.
News & Media
A few mutations in a gene, which is a section of DNA that provides the blueprint for a specific protein, can result in a protein that no longer folds properly.
News & Media
In eukaryotes, a section of DNA between 140 and 200 base pairs long winds around a discrete set of eight positively charged proteins called a histone, forming a spherical structure called the nucleosome.
Encyclopedias
The group examined a section of DNA known to be mutated in some short people; the section lay in a so-called pseudoautosomal region (PAR) that is identical in the X and Y chromosomes.
Science & Research
He and his colleagues also find that this microbe has a section of DNA in which some of the base pairs that make up the letters of the genetic code are repeated.
Science & Research
It's caused by a genetic defect, where a section of DNA repeat many more times than it is supposed to.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
37 human-written examples
Dr Spadafora, for instance, claims he once found a section of frog DNA, which must have hung around in his laboratory from an experiment conducted more than a year previously, inside a mouse sperm.This promiscuity is widespread, and has been seen in sperm from more than 30 species, from sea urchins to honey bees to humans.
News & Media
Our genes code for proteins; a section of the DNA is transcribed to RNA, beginning the process by which a gene is expressed.
He cites a 1978 paper that showed a link between the gene behind sickle cell disease and a variation in a section of junk DNA.
News & Media
16S rRNA is a section of prokaryotic DNA found in all bacteria and archaea.
The second distinct 3'UTR identified by BLAST also appeared to tile into another β-tubulin gene but, on closer inspection, this resulted from a section of repetitive DNA on either side of the tubulin that caused one to tile back into the N-terminus.
Science
Expert writing Tips
Best practice
When writing about specific genetic research or findings, use "a section of dna" to refer to a particular area or segment being studied or manipulated. For example: "The researchers analyzed "a section of dna" known to be associated with the disease."
Common error
Avoid using "a section of dna" when a more specific term like "gene", "allele", or "chromosome" would be more accurate. For example, instead of "The study examined a section of dna for mutations", consider "The study examined the BRCA1 gene for mutations."
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
"A section of dna" functions primarily as a noun phrase, acting as the subject or object in a sentence. Ludwig AI confirms its usability. It identifies a specific, localized part of the larger DNA molecule, often in the context of genetic research or biological processes.
Frequent in
Science
70%
News & Media
20%
Encyclopedias
10%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a section of dna" is a grammatically sound noun phrase commonly used in scientific, medical, and related fields to denote a specific region of the DNA molecule. According to Ludwig AI, the phrase is usable and correct in written English. Its purpose is primarily to identify a target for research, describe a genetic feature, or explain a biological mechanism, with a frequency qualified as uncommon in broad contexts. The phrase appears most often in science-related content, particularly from authoritative sources like Science Magazine and BMC Genomics. When using this phrase, it's important to be specific and consider if a more precise term like “gene” or “allele” would be more appropriate.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a segment of dna
Replaces "section" with "segment", implying a distinct part of DNA but slightly more technical.
a dna fragment
Uses "fragment" to suggest a smaller, possibly isolated piece of DNA.
a region of dna
Substitutes "section" with "region", indicating a broader area within the DNA sequence.
a portion of dna
Replaces "section" with "portion", suggesting a part of the DNA, less technical.
a stretch of dna
Uses "stretch" to imply a continuous sequence of DNA.
a dna sequence
Focuses on the order of nucleotides within the DNA.
a gene sequence
Specifies that the DNA section is a gene, a functional unit of heredity.
a locus on the dna
Uses "locus" to refer to a specific, fixed position on a chromosome where a particular gene or genetic marker is located.
part of the dna molecule
Emphasizes that the section is part of a larger molecular structure.
a dna element
Uses "element" to denote a component of the DNA with a specific function.
FAQs
How can I use "a section of dna" in a sentence?
You can use "a section of dna" to refer to a specific region of genetic material in scientific or biological contexts. For example: "The researchers isolated "a section of dna" that contained the gene of interest."
What are some alternatives to saying "a section of dna"?
Depending on the context, you can use alternatives like "a segment of dna", "a region of dna", or "a dna fragment".
Is it correct to refer to a gene as "a section of dna"?
Yes, a gene can be described as "a section of dna", but it's more precise to call it a gene when you're referring to the specific functional unit that codes for a protein.
What's the difference between "a section of dna" and a chromosome?
"A section of dna" refers to a specific part of the DNA molecule, while a chromosome is an entire structure containing tightly packed DNA and proteins. A chromosome contains many "genes", and each gene is essentially "a section of dna".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested