Q: Given a scientific passage and an answer, generate a question for the given answer.
Passage: Endocrine system disorders usually involve the secretion of too much or not enough hormone. For example, a tumor of the adrenal gland may lead to excessive secretion of growth hormone, which causes gigantism. In Type 1 diabetes, the pancreas does not secrete enough insulin, which causes high levels of glucose in the blood. Answer: type 1
A:
Which type of diabetes involves the pancreas not secreting enough insulin, which causes high levels of glucose in the blood?