What is molten rock deep within earth called?

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Organize the word parts according to where they appear in a medical term.

Dna and rna share a number of similarities,but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna