The noun DNA (or deoxyribonucleic acid) is an uncountable noun, a word for a substance.
noun
every strand of DNA is different is an example use it as a noun
Chimeras. In genetic engineering, molecules of combined DNA are known as chimeras because they are produced by combining DNA from different species. Combined DNA is also known as recombinant DNA, since DNA from 2 sources has been recombined to produce it.
The enzyme that is used to bind DNA fragments together is DNA ligase. Using DNA ligase to join DNA fragments is the last step in the production of a recombinant DNA plasmid.
DNA polymerase III DNA polymerase I DNA Ligase DNA Helicase
The noun 'hill' is a countable noun. The plural form is 'hills'.
Shark is a countable noun.
Prawn - prawns is the plural - is a countable noun
Transport is both countable and uncountable as a noun.
Yes, property is a countable noun.
The noun 'animal' is a countable noun. The plural form is animals.
Yes, the noun 'marriage' is a countable noun. The plural noun is marriages.
The noun meeting is a countable noun; for example: We have a meeting this afternoon. We've had two meetings already this week.
The noun analysis is a countable noun; the plural form is analyses.
The noun 'desert' is a countable noun; the plural form is deserts.
The noun utensil is a countable noun; one utensil, many utensils.
Countable