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 gerund is a type of verbal that ends in -ing and is used like a noun. Examples of gerunds include actions like chewing, writing, whispering, and snoring. Similar to infinitives, gerunds can also function as the subject of the sentence, the direct object, or as the subject complement. Gerunds can also act as an object of a preposition. Let's look at some examples to better understand these four different ways to use gerunds.