Insulin is secreted by $\beta - $ cells of islets of Langerhans. Which is not correct concerning insulin
It is rich in cysteine, leucine and glutamic acid
Oestrogen stimulates the secretion of insulin
Two chains of insulin are linked by disulphide bridges
The functional nature of insulin is same as that of proinsulin
$BMR$ of rabbit is under influence of
Hormone is a/an
Vasopressin is concerned with
Suggest a suitable word for the fourth place Darkening of skin : $MSH $:: Lightening of skin : .......
Which of the following gland is responsible for immunity in human ?