Read the following sentence and find out the object nouns in them.
Do you miss your mother?

The correct answer is: Miss

The correct answer is "your mother".
In the given sentence, the speaker is asking somebody whether that person misses his or her mother. Here, the action is missing and that action of missing is performed on "your mother". Moreover, we get "your mother" as an answer when we question the verb "miss" with "whom". So, the correct subject noun is "your mother".