When the cleavage furrow extends from animal pole to vegetal pole and does not bisects the egg equally into two blastomeres the plane of cleavage is
Meridional
Equatorial
Latitudinal
Vertical
In mammalian sperm, spirally arranged mitochondria are present in
$A$ : The morula passes through the phase of compaction, produces two major type of cells : the peripheral cells and the inner cell mass.
$R$ : The descendants of inner cell mass become the trophoblast cells
Which cell division is found during cleavage
If the first cleavage furrow divides the zygote completely into two, the cleavage type is
Fertilization is fusion of