The final event in the process of fertilization is
Fusion of gametes
Egg activation
Amphimixis
Organizational change in egg cytoplasm
$A$ : If both the ovaries are removed after the first trimester of pregnancy, still there would be normal growth of foetus.
$R$ : After first trimester placenta secretes sufficient progesterone
Bartholin's glands in rabbit are found in
Which of the following is not evident that the pattern of cleavage is determined by factors in the egg cytoplasm rather than by genes of zygote
The first sign of the growing foetus may be noticed by listening to the heart sound carefully through the stethoscope. Embryo's heart is formed _________.
Animal $\quad$ Gestation period
Which part of the sperm contains hydrolytic enzymes?