<span>The subject of the dependent clause belongs in the nominative case. The nominative case is one of the grammatical cases of a noun or other part of speech, which generally points the subject of the predicate noun or a verb or predicate adjective, against its object or other verb arguments.</span>
The DNA molecules is packaged into thread-like structures called chromosomes.Each chromosomes is made up of DNA tightly coiled many times around proteins called histones.
