In human body 99% of total mass is formed of_____________??
A. 16 Bio-elements
B. 12 Bio-elements
C. 10 Bio-elements
D. 6 Bio-elements
Category: Biology Mcqs
Which of the following statement is incorrect about RNA_________________??
A. The pentose sugar in it is Ribose.
B. It contains Adenine Guanine Thymine and Cytosine
C. It is present in the nucleoli
D. It may be folded back on itself to give double helical characteristics.
In which of the following location enzymes controlling cellular respiration are present____________??
A. Nucleus
B. Chlorophast
C. Milochondria
D. Ribosome
What happens during muscle contraction to the length of each myosin and action filament??
A. Z- lines get closer
B. A band becomes short
C. 1 band elongates
D. There is no change in sarcomere
Carbon atom is_____________??
A. Monovalent
B. Divalent
C. Trivalent
D. Tetravalent
Branch of biology which deals with the study of chemical components and chemical processes in living organisms is called________________??
A. Molecular biology
B. Physiology
C. Biochemistry
D. Atomic biology
All of the following are similarities between nervous and endocrine system except:_____________??
A. Produce chemical messengers
B. Release chemical messengers in extracellular space
C. Homestatic in function
D. Having slow but prolonged effects
The one which can break open a plasmid ring is__________??
A. Ligase enzyme
B. Primase enzyme
C. Restriction endonuclease
D. ATP-ase enzyme
The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ??
A. Environmental biology
B. Social biology
C. Human biology
D. Both b and c
Anus is surrounded by _____ types of muscles??
A. 2
B. 3
C. 1
D. 4
