Question
Describe the difference between the structures of a dicot embryo and monocot embryo. Also draw LS of monocot and dicot seeds.
✓
Answer
Difference between the structures of a dicot embryo and monocot embryo:
| S. No. | DICOT EMBRYO | MONOCOT EMBRYO |
| 1. | Dicot embryo is enclosed in between two cotyledons. | Monocot embryo is enclosed by a single cotyledon. |
| 2. | Dicot embryo has its plumule, future shoot in distal position. | Monocot embryo has its plumule in lateral position. |
| 3. | Dicot embryo has no protective sheaths on the plumule and radicle. | Monocot embryo has protective sheaths called as coleoptile covering the plumule and coleorrhiza covering the radicle. |
| 4. | Dicot embryo has no scutellum. | Monocot embryo has a scutellum. |
| 5. | Dicot embryo mostly does not have an endosperm to nourish it. | Monocot embryo has an endosperm to nourish the embryo. |
Diagram LS of monocot and dicot seeds:
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How are genetic disorders broadly classified? Differentiate between them. Explain by giving one example for each.
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
Answer the following questions:
With labelled diagrams, depict stages in embryo development in a dicotyledenous plant.
With labelled diagrams, depict stages in embryo development in a dicotyledenous plant.
List 10 modern day animals and using the various resources available link it to a corresponding ancient fossil. Name both of them.
What do you mean by seed ? Describe the process of seed formation ?
Describe in detail the various ancient and modern hypothesis given to explain the origin of life on earth.
Draw a diagram and describe the immune system found in humans.
For selection of recombinants, insertional inactivation of antibiotic marker has been superceded by insertional inactivation of a marker gene coding for a chromogenic substrate. Give reasons.
The biology teacher was explaining about restriction enzymes and came to a point explaining that these enzymes are extracted from bacteria and are called as molecular scissors. Varun got curious and asked some questions for more clarity on the concept to his teacher.
- From which part of microorganisms are restriction enzymes derived?
- Why are restriction enzymes called molecular scissors?
- What if some strands are needed to be cut from within. Would that lead to wastage of DNA?
- What values are shown by Varun?
Write comments on the following- (1) Cocaine (2) Ringworm (3) Ascariasis (4) Fluid immune response.