101. A man with blood group $$A$$ marries $$AB$$ blood group woman. Which type of progeny indicate that the man is not homozygous?
A
$$AB$$
B
$$B$$
C
$$A$$
D
$$O$$
Answer :
$$B$$
102. Blood of which vessel in mammals carries least percentage of urea
A
Dorsal aorta
B
Renal vein
C
Renal artery
D
Posterior vena cava
Answer :
Renal vein
103. Heart of fish receive
A
Oxygenated blood
B
Deocygenated blood
C
A and B both
D
None of the above
Answer :
Deocygenated blood
104. Heart beat becomes faster on stimulation by
A
Sympathetic nerves and adrenaline
B
Sympathetic and parasymapa
C
Parasympathetic nerves and epinephrine
D
Parasympathetic nerves andacetylcholine
Answer :
Sympathetic nerves and adrenaline
105. The lymph serves to
A
transport oxygen to the brain
B
transport carbon dioxide to the lungs
C
return the interstitial fluid to the blood
D
return the WBCs and RBCs to the lymph nodes
Answer :
return the interstitial fluid to the blood
106. Vitamin $$K$$ is required for
A
formation of thromboplastin
B
conversion of fibrinogen to fibrin
C
conversion of prothrombin to thrombin
D
synthesis of prothrombin
Answer :
synthesis of prothrombin
107. Heart beat in vertebrates is
A
Neurogenic
B
Myogenic
C
A and B both
D
None of the above
Answer :
Myogenic
108. The heart of a healthy man beats normally per minute
A
50 - 60 times
B
70 - 80 times
C
90 - 100 times
D
None of the above
Answer :
70 - 80 times
109.
The diagram given here is the standard ECG of a normal person the $$P$$-wave represents the:
A
Initiation of the ventricular contraction
B
Beginning of the systole
C
End of systole
D
Contraction of both the atria
Answer :
Contraction of both the atria
110. A child of blood group $$O$$ cannot have parents of blood groups
A
$$AB$$ and $$AB/O$$
B
$$A$$ and $$B$$
C
$$B$$ and $$B$$
D
$$O$$ and $$O$$
Answer :
$$AB$$ and $$AB/O$$