Question
Biology Question on The Female Reproductive System
Eight nucleate embryo sacs are
A
always bisporic
B
always tetrasporic
C
always monosporic
D
sometimes monosporic, sometimes bisporic and sometime tetrasporic
Answer
sometimes monosporic, sometimes bisporic and sometime tetrasporic
Explanation
Solution
Megaspore is a haploid structure, which divides and gives rise to embryo sac, is also called as female gametophyte. Eight-nucleate embryo sacs may be monosporic (eg, Polygonum); or bisporic (eg, Allium); or tetrasporic (eg, Adoxa).