Advertisements
Advertisements
प्रश्न
You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
Advertisements
उत्तर
First of all, take some dry gram seeds in a Petri dish. Now, soak the seeds in plain water and keep them overnight. Drain the excess water. After that, cover the soaked seeds with a wet cotton cloth and leave them for a day. Finally, cut open a soaked seed and observe its different parts.
Hence, the correct option is D.
APPEARS IN
संबंधित प्रश्न
A flower may have either male or female reproductive parts. Such a flower is called ______.
Where are a plant's sex organs located?
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Differentiate between self-pollination and cross-pollination.
The anther wall consists of four wall layers where ______
Pollen grains are produced by ______
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
State the post-fertilisation changes that lead to fruit formation in plants.
