A typical angiosperm embryo sac at maturity is:
8-celled, 7-nucleate
7-celled, 7-nucleate
8-celled, 8-nucleate
7-celled, 8-nucleate
Related Questions
The colorful and fragrant flowers of water hyacinth and water lily primarily attract:
Herbivorous fish
Detritus feeders
Pollinating insects
Waterfowl
An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it, thereby pollinating the flower. This phenomenon is called
Pseudoparthenocarpy
Mimicry
Pseudopollination
Pseudocopulation
Two to three layers of anther wall which are ephemeral called
Middle layer
Epidermis
Endothecium
Tapetum
Pollen grains are shed at which stage?
2 celled
3 celled
In majority at 2 celled, in others 3 celled
single celled stage
Which of the following is incorrect in angiosperm?
Double fertilization
Presence of vessels in xylem
Ovules enclosed in ovary
Free-living gametophyte
Single megasporic development is called
Single sporic
Unisporic
Monosporic
Nulleiporic
Which one of the following is surrounded by a callose wall?
Microspore mother cell
Male gamete
Egg
Pollen grain
Fibrous thickenings of hygroscopic nature are found in which part of the anther wall?
Epidermis
Endothecium
Middle layers
Tapetum
Anthesis is
Development of pollen
Development of anther
Opening of flower
Reception of pollen by stigma
In nature, cleistogamous flowers are
Self-pollinated
insect-pollinated
Wind-pollinated
Bird-pollinated
