Home
Class 12
BIOLOGY
In seeds, characterised by hypogeal germ...

In seeds, characterised by hypogeal germination, cotyledons generally do not becomes green because

A

They lack mitochondria

B

They developed very early

C

They contain inhibitor

D

They remain below the soil

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Similar Questions

Explore conceptually related problems

When seeds are attached to parent plant, the type of germination is called as (A) Ovipary (B) Epigeal (C) Vivipary (D) Hypogeal

You are given following seeds : Maize, Bean, Wheat, Green gram (Mung), Rice, Groundnut. Classify them into monocot and dicot seeds. Select any one dicot seed and dip in water for about 4 to 5 hours. Press it and observe the part of embryo. Is there any change in size of cotyledon as seed germination progresses ?

In the result of Mendel's experiment on the inheritance of two characters, the ratio of the plants showing yellow and wrinkled seeds and of the plants showing green and round seeds in F_(2) generation is …………….....

To observe the different parts of seed. Materials : Seeds of Bengal gram (chana), water, wet cloth. Procedure : rarr Soak a few seeds of Bengal gram (chana) and keep them overnight. rarr Drain the excess water and cover the seeds with a wet cloth and leave them for a day. rarr Make sure that the seeds do not become dry. rarr Cut open the seeds carefully and observe the different parts. What is the role of cotyledon in chana ?

To observe the different parts of seed. Materials : Seeds of Bengal gram (chana), water, wet cloth. Procedure : rarr Soak a few seeds of Bengal gram (chana) and keep them overnight. rarr Drain the excess water and cover the seeds with a wet cloth and leave them for a day. rarr Make sure that the seeds do not become dry. rarr Cut open the seeds carefully and observe the different parts. What is an embryo of plant ?

To observe the different parts of seed. Materials : Seeds of Bengal gram (chana), water, wet cloth. Procedure : rarr Soak a few seeds of Bengal gram (chana) and keep them overnight. rarr Drain the excess water and cover the seeds with a wet cloth and leave them for a day. rarr Make sure that the seeds do not become dry. rarr Cut open the seeds carefully and observe the different parts. How is an embryo formed from zygote ?

(i) A poor emitter has a large reflectivity . Explain why. (ii) A copper tumbler feels much colder than a wooden block on a cold day. Explain why. (iii) The earth would become so cold that life is not possible on it in the absence of the atmosphere. Explain why? (iv) Why clear nights are cooler than cloudy nights? Why does a piece of red glass when heated and taken out glow with green light? (vi) Why does the earth not become as hot as the sun although it has been receiving heat from the sun for ages? (vii) Animals curl into a ball when they are very cool. Why? (viii) Heat is generated continuously in an electric heater but its temperature becomes constant after some time. Explain why? (ix) A piece of paper wrapped tightly on a wooden rod is observed to get charred quickly when held over a flame as compared to a similar piece of paper when wrapped on a brass rod. Explain why? (x) Liquid in a metallic pot boils quickly whose base is made black and rough than in a pot whose base is highly polished . Why?