Which of the following correctly describes the cellular organization of a mature embryo sac in a typical angiosperm?
8 cells, 7 nuclei
7 cells, 8 nuclei
8 cells, 8 nuclei
7 cells, 7 nuclei
Related Questions
Male gametes in angiosperms are formed by the division of?
Generative cell
vegetative cell
microspore
microspore mother cell
Continued self-pollination results in
Inbreeding depression
Out breeding depression
Hybrid vigour
Better result in offsprings
250 microsporocytes will give rise to how many microspores?
250
500
1000
2500
Two to three layers of anther wall which are ephemeral called
Middle layer
Epidermis
Endothecium
Tapetum
Sporopollenin plays a crucial role in the formation of pollen fossils. What is the key property of sporopollenin that facilitates this process?
Solubility in water
Resistance to degradation
Rapid decomposition
Attraction to insects
Function of tapetum is to provide
Protection
Nutrition
Respiration
All of these
Which of the following statements is INCORRECT regarding water pollination?
Pollen floats on the water surface
Flowers are colorful and scented
Pollen is lightweight and non-sticky
Stigma is large and feathery
Fibrous thickenings of hygroscopic nature are found in which part of the anther wall?
Epidermis
Endothecium
Middle layers
Tapetum
The pollens are liberated in cassytha by
Porous dehiscence
Longitudinal dehiscence
Transverse dehiscence
Valvular dehiscence
Microsporogenesis is
Formation of microspores
Formation of female gametes
Formation of tapetum
All of the above
