A linear tetrad of $4$ cells lying in an axial row is formed during the development of
Embryo sac
Pollen grains
Ovary
Ovule
It’s obvious.
Location and Function :
$1.$ Ovary
$2.$ Placenta
Synergids are which type ?
A Drusa type of embryo sac is
$A$- Four cells are at the chalzal end and are called the antipodals.
$R -$ A typical angiosperm embryo sac, at maturity,though $8$-nucleate is $7$-celled
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