Choose correct sentence.
$(I)$ Nucleus of the functional megaspore divides meiotically to form two nuclei.
$(II)$ After $8$ nucleate stage, cell walls are laid down leading to organization of typical female gametophyte
$(III)$ The egg apparatus, consists of two synergids and one egg cell.
$(IV)$ Three cells are at the chalaza end are called antipodal cells.
Only $I$ and $II$
Only $II, III$ and $IV$
Only $I$ and $IV$
$I, II, III, IV$
Ovules are borne on
Examine the figure given below and select the right option giving all the four parts $a, b, c$ and $d$. Correctly identify
$a\quad\;b\quad\;c\quad\;d$
Assertion: The megaspore mother cell divide mitotically to produce four spores.
Reason: Megaspore mother cells are diploid and megaspore is haploid.
How many meiotic division would be required to produce $101$ female gametophytes in an angiosperm