A plasmid that is attached to the cell membrane or integrated into the bacterial chromosome is called an episome (q.v.). Plasmids are extremely valuable tools in the fields of molecular biology and genetics, specifically in the area of genetic engineering (q.v.).
Gerund and Infinitive: Whatâs the Difference? Knowing the difference between gerund and infinitive can save you from making costly grammar mistakes when writing. In a nutshell, a word formed from a verb acting as a noun and ending in ing is a gerund. Infinitive phrases â normally referred to as infinitives â are formed with the word to in front of a verb.
A participle is a form of a verb that is used in a sentence to modify a noun, noun phrase, verb, or verb phrase, and thus plays a role similar to that of an adjective or adverb.It is one of the types of nonfinite verb forms.n adverbial participle (or a participial phrase/clause based on such a participle) plays the role of an adverbial (adverb phrase) in the sentence in which it appears, whereas an adjectival participle (or a participial phrase/clause based on one) plays the role of an adjective phrase.