What is the secondary structure of the peptide hormone GLP-1

Describe the most important regulatory mechanisms controlling the synthesis and secretion of steroids.

Explain how vinclozolin acts as an endocrine disrupter.

Which signaling molecule or molecules bind to a G-protein coupled receptor? (note: there may or may not be more then one answer) a) cortisol b) insulin c) glucagon d) calcium e) cyclic AMP f) epinephrine

please answer 25,26

Herceptin is an antibody that is used to treat certain forms of breast cancer by binding to a class of estrogen receptors. What is the basis for its effectiveness in treating certain forms of breast cancer?

2. Peter is diabetic. So the molecular biologist cloned a DNA sequence in Peter's body cells that will synthesize insulin hormone. 5' AGCTAGACGCATCCTAATG-GCC-ACT-GAA-TCC-TGAATGGACGA 3' a) What will be the RNA of this insulin gene Sequence? b) How many amino acids will be translated from this mRNA? c) Give the amino-acid sequence of insulin.

Chain A of human insulin has ………. amino acids, while chain B has ……….. amino acids. Chain A and chain B are connected by …….. disulfide bonds. C-peptide measurement can be useful clinically for …………………………….. Insulin detemir differs from regular insulin in ……………………., ……………….., and ……………..

Briefly explain....Represent the reactions when Phosphatidylethanolamine was treated with; (I) Phospholipase C (ii) Phospholipase D

All of the following hormones are properly classified EXCEPT (use the table below for general characteristics) (A) thyroxin-arachidonic acid (B) thromboxanes-arachidonic acid derivatives (C) estrogen-steroid (cholesterol based) (D) growth hormone-small protein (< 200 amino acid) (E) norepinephrine- amino acid derivative