Which one of the following is the most abundant protein in animals?

1.  Collagen

2.  Lectin

3.  Insulin

4.  Hemoglobin

Which of the following organic compounds is the main constituent of Lecithin?

1. Arachidonic acid

2. Phospholipid

3. Cholesterol

4. Phosphoprotein

"Ramachandran plot" is used to confirm the structure of:

1. RNA

2. Proteins

3. Triacylglycerides

4. DNA

Which one is the most abundant protein in the animal world?

1. Trypsin                     

2. Haemoglobin

3. Collagen                   

4. Insulin