Which one of the following can help in the diagnosis of the genetic basis of a disorder?

Which of the following diseases is not related to the circulatory system?

Diabetes mellitus is caused by a deficiency of which of the following?

Given below are two statements.
Statement $I$: Diabetes mellitus is seen in adults only.
Statement $II$: Diabetes mellitus is due to facilitated excessive movement of glucose into cells by insulin.
In light of the above statements,select the correct answer from the options given below.

Treatment with 'Alloxan' destroys

Which condition is $NOT$ possible in $Diabetes$ $Mellitus$?