The type of placenta found in human beings is of type
Diffuse
Zonary
Cotyledonary
Discoidal
Heterogametic male condition does not occur in
Which of the following are secretions produced by the spermatozoa at the time of fertilization?
Precocious puberty is
$A$ : Lack of menstruation may be indicative of pregnancy.
$R$ : Menstruation only occurs if the released ovum is fertilised.
Sometimes the labor pains are less and uterine contractions have to be induced. What do you think the doctors inject to facilitate delivery?