Sexual Reproduction in Flowering Plants Question 55
55. Eight nucleate embryo sacs are
[2000]
(a) always tetrasporic
(b) always monosporic
(c) always bisporic
(d) sometime monosporic, sometimes bisporic and sometimes tetrasporic
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Answer : d
Hints & Solutions
(d) Monosporic type - eight nucleated Polygonum type. In this types only one megapore situated at chalazal end takes part in the development of embryosac.
Bisporic type - eight nucleated Allium type.
Tetrasporic type - eight nucleated Adoxa type.
