A) Achieve comparability between study and control groups B) Avoid observer bias C) Avoid subject bias D) Avoid observer and subject bias Answer (Select an option above to get the answer):
A) Facilitate double blinding B) Help ensure the study subjects are representative of general population C) Ensure the groups are comparable on base line characteristics D) Reduce selection bias in allocation to treatment Answer (Select an option above to get the answer):
(Single Best Answer) Question 694: The structural proteins are involved in maintaining the shape of a cell or in the formation of matrices in the body. The shape of these proteins is ?
A) Globular B) Fibrous C) Stretch of beads D) Planar Answer (Select an option above to get the answer):
(Single Best Answer) Question 695: The comparison of the amino acid sequence of Cytochrome C from different species shows many variations. Most of these variations are found ?
A) Randomly B) Only in helical regions C) Only in strand regions D) Mainly in loop regions Answer (Select an option above to get the answer):
(Single Best Answer) Question 696: Which one of the following can be a homologous substitution for isoleucine in a protein sequence ?
A) Methionine B) Aspartic acid C) Valine D) Arginine Answer (Select an option above to get the answer):
(Single Best Answer) Question 697: Proteins are linear polymers of amino acids. They fold into compact structures. Sometimes, these folded structures associate to form homo- or hetero-dimers. Which one of the following refers to this associated form ?
A) Denatured state B) Molecular aggregation C) Precipitation D) Quaternary Structure Answer (Select an option above to get the answer):
(Single Best Answer) Question 698: There are more than 300 variants of human hemoglobin gene. Among these only a few are fatal. Hence, the most important factor to be conserved in a protein for its function is the ?
A) Amino acid sequence B) Ligand binding residues C) Structure D) Environment Answer (Select an option above to get the answer):
A) Binds the antibiotic Rifampicin B) Is inhibited by á-amanitin C) Specifically recognizes the promoter site D) Is part of the core enzyme Answer (Select an option above to get the answer):