Development of Female Gametophyte
Trending Questions
What is the ploidy of the central cell of the embryo sac?
Identify the labelled parts in the given figure
(i)- Synergids, (ii)- Central cell, (iii)- Vacuole, (iv)- Egg cell, (v)- Antipodals
(i)- Antipodals, (ii)- Polar nuclei, (iii)- Central cell, (iv)- Egg cell, (v)- Synergids
(i)- Vegetative cells, (ii)- Secondary nucleus, (iii)- Egg cell, (iv)- Synergid, (v)- Filiform apparatus
(i)- Anterior cells, (ii)- Central cell, (iii)- Secondary nucleus, (iv)- Female gamete, (v)- Accessory cells
The arrangement of (i) cells and (ii) nuclei in a typical embryo sac is -
(i)(3 + 1 + 3) & (ii)(3 + 2 + 3)
(i)(3 + 2 + 3) & (ii)(3 + 1 + 3)
(i)(3 + 1 + 3) & (ii)(3 + 1 + 3)
(i)(3 + 2 + 3) & (ii)(3 + 2 + 3)
What is the correct sequence of the formation of female gametophyte in angiosperms?
Nucellus, megaspore tetrad, megaspore mother cell, megaspore, female gametophyte
Megaspore tetrad, nucellus, megaspore mother cell, megaspore, female gametophyte
Nucellus, megaspore mother cell, megaspore tetrad, megaspore, female gametophyte
Megaspore mother cell, megaspore tetrad, megaspore, nucellus, female gametohyte
Given alongside is a diagram representing a stage during mitotic cell division. Study it carefully and answer the questions that follows:
(i) It is a plant cell or a animal cell? Give a reason to support your answer.
(ii) Identify the stage shown.
(iii) Name the stage that follows the one shown here. How is that stage identified?
(iv) How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
A. Endothecium lies below the epidermal layer
B. Fusion of egg with male gamete is called apogamy.
C. Synergids are haploid.
D. The point at which funicle touches the ovule is raphe.
- A and D only
- A and B only
- A and D only
- A and C only
primary constriction, nucleolarorganiser, cell plate, secondary constriction
-give reason
