non mortile sperm called
a)spermatid
b)spermol
c)spermatia
d)none
Surfactant production in lungs starts at
A.28 weeks
B.32 weeks
C.34 weeks
D.36 weeks
Total no. Of lone-pair of electrons in Melamine is/are?
A. 1
B. 4
C. 6
D. 8
The first serologic marker to appear in
patients with acute hepatitis B virus
infection is
A. Anti-HB
B. Anti-HBc
C. Anti-HBe
D. HBsAg