List of top Questions asked in ICAR AIEEA (PG)

Consider the following statements about the Shine-Dalgarno sequence:
A. It is named after the Australian scientists John Shine and Lynn Dalgarno.
B. It is a ribosomal binding site in bacterial and archaeal mRNA.
C. It is located 8 bases upstream of the start codon AUG.
D. It helps in replication.
From the choices given below, select the correct one:
Below is the list of some of the amino acids:
A. Alanine
B. Lysine
C. Leucine
D. Tyrosine
Choose the amino acids which are glycogenic as well as ketogenic from the options given below:
Calmodulin a calcium dependent regulatory protein and of 17-kDa is homologous to which muscle protein?
Which vitamin is widely used as a food additive?
How many disulfide bonds are formed in proinsulin after removal of the signal sequence of preproinsulin?
What is the function of the adipokine Leptin?
Name an allosteric inhibitor that inhibits Aspartate transcarbamoylase activity and is also an example of feedback inhibition.
What is the most active form of Vitamin E?
Which is the second most abundant biomolecule found in biosphere?
Name the component that is mostly responsible for the specificity of the enzyme.
What are the two intracellular messengers that are obtained by hydrolysis of phosphatidylinositol bisphosphate?
A. Monoacylglycerol
B Diacylglycerol
C. Triacylglycerol
D. Inositol 1,4,5 trisphosphate
Choose the correct answer from the options given below:
Due to use of penicillin and its derivatives which enzyme is expressed by strains of pathogenic bacteria and is responsible for bacterial resistance to antibiotics ?
Name the bacterial and yeast polysaccharide that is found in dental plaque on the surface of teeth.
Which disease is caused due to absence of the enzyme hexosaminidase A and results in accumulation of ganglioside \(G_{M2}\) in the brain.
The irreversible inhibitor Iodoacetate binds with which group at the active site of the enzyme papain to make them inactive.
Name the enzyme which is the oldest known marker used for myocardial infarction
Why the food product gelatine, derived from collagen has little nutritional value as a protein?
Name the technique used for separation of proteins according to size?
Name the structure that confers the arrangement of the protein that contains two or more polypeptides in a three dimensional complex.
In Ping pong reaction of enzymes , the first substrate is bound to the enzyme and its product is released before there is binding of the second substrate. Ping pong reactions are also known as :
Identify the non protein \(\alpha\)-amino acids from the list.
A. Ornithine
B. Citrulline
C. Homoserine
D. Taurine
Choose the correct answer from the options given below:
Why Niacin is not strictly a vitamin ?
Identify the correct statements relating to blood glucose .
A. The principle fuel for the brain is glucose .
B. Untreated diabetes mellitus may lead to acidosis.
C. The average glucose concentration of an individual can be assessed by estimating its effect on hemoglobin .
D. Untreated diabetes mellitus may lead to ketosis.
Choose the correct answer from the options given below:
Which cell organelle contains the hydrolase enzyme cathepsin ?
The imino acid found in proteins is: