So I think the meaning of this line is, Juliet is stating that she will go and be courteous, and if she feels anything other than physical attraction ( mental perhaps intimate attraction ) she will not act upon it unless Lady Capulet decides other wise. <em>This is just a guess but I really tried I hope i'v helped !</em>
<em>Mitosis produces daughter cells that are basically replicas to their parent cells. As the daughter cells duplicates itself, it has make sure the chromosomes were split equally.</em>