A. Cell wall
B. Cell membrane
C. Boundary
D. Nuclear envelop
In living organisms the lubricant which provides protection against damage resulting from friction is___________?
A. Carbohydrates
B. Fatty acid
C. Water
D. Protein
A. cattle
B. sheep
C. goat
D. all of these
A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called__________?
A. Substrate
B. Co-factor
C. Inhibitor
D. Promotor
Sickle cell anemia is an example of_________________?
A. Chromosomal aberration
B. Insertion of gene
C. Deletion of gene
D. Point mutation
Xanthophylls are _________ pigments
A. Yellow
B. Red
C. Orange
D. Green
A. paralysis
B. oedema
C. mental retardation
D. all of these