Select which investigation is most appropriate to identify the roles of these molecules in transcription?

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

what in the weirdo : o

condenser is used to focus in the light microscope.