Sexual Reproduc...

Which one of the following parts of a mature pollen grain in angiosperm is pecto-cellulosic in nature?

In a type of agamospermy, known as adventive embryony in Mangifera and Eugenia, the embryo arises directly from the cells of

During the megasporogenesis and development of female gametophyte, meiosis occurs in _____________.

In a typical dicotyledonous, Capsella bursa-pastoris type of embryo development, cortical initials of the radicle (embryonic root) is derived from the _________.

Focke (1881) gave the term 'xenia', which was observed in plant like Zea mays. Which of the following statements is more appropriately represents the term xenia?

Which of the following walls of microsporangium has more than one nucleus per cell?

Which of the following pairs of cells are diploid?

Which of the following cells undergoes meiotic division?
a. Microspore mother cell
b. Megaspore mother cell
c. Sporogenous cells
d. Microspores

Besides cellulose, the intine layer of pollen grains also contains

Perisperm is a residual nucellus, which persists in some seeds. In which of the following plants it is found?