Pinus seed is originated in :
capsule
microsporophyll
microsporangia
megasporophyll
D.
megasporophyll
Seed is the result of fertilization and consequent enlargement of the ovule. Two ovule or megasporangium are present on the adaxial side of ovuliferous scale. The ovuliferous scale and bracts constitute the megasporophyll. There are about 80-90 megasporophylls in a single female cone of Pinus.
From which part of Cocos nucifera, coir is obtained :
Endocarp
Mesocarp
Epicarp
Any part of fruit
Which of the following maintain the constant number of chromosomes generation after generation?
Meiosis
Endomitosis
Mitosis
Amitosis
Plant cell is differ from animal cell because of
the presence of cell wall and absence of chlorophyll in plant cell
the presence of cell wall and chlorophyll in plant cell
the absence of cell wall and presence of chloroplast in animal cell
the absence of cell wall and presence of chlorophyll in plant cell