Advertisements
Advertisements
Question
What is the function of inner cell mass?
Solution
The ‘embryo proper’ develops from the inner cell mass.
APPEARS IN
RELATED QUESTIONS
Draw a diagram of DNA showing genes.
Find the odd one out:
Amoeba, Euglena, Planaria, Paramoecium
Name two animals which reproduce asexually.
Fill in the following blank with suitable word :
the process of...........ensures continuity of life on earth.
What is the basic difference between asexual reproduction and sexual reproduction?
Match the organisms given in column I with the methods of reproduction/propagation given in column II :
| Column I | Column II | |
| (i) Plasmodium | (a) Spore formation | |
| (ii) Spirogyra | (b) Leaves | |
| (iii) Jasmine | (c) Regeneration | |
| (iv) Apple tree | (d) Budding | |
| (v) Bryophyllum | (e) Binary fission | |
| (vi) Potatoes | (f) Layering | |
| (vii) Rhizopus | (g) Fragmentation | |
| (viii) Hydra | (h) Tubers | |
| (ix) Planaria | (i) Cuttings | |
| (x) Leishmania | (j) Multiple fission | |
| (xi) Sugar cane | (k) Grafting | |
| (xii) Rose |
The method of asexual reproduction in plants in which callus is produced is :
Imagine all the seeds produced by a plant happen to fall under the same plant and sprout into new plants. Mention any two problems that will be faced by the new plants.
What is the role of the seminal vesicles and the prostate gland?
By which process do green plants synthesize their food?
Name the factors which take part in this process.
The number of nuclei present in a zygote is _______.
The number of meiotic and mitotic divisions necessary for development of female gametophyte in angiosperms is ______.
Draw a well labelled diagram of the monocot seed you have studied.
What are the causes for the extinction of animals?
What will happen if you cut planaria into small fragments?
Identify the chromosome number of the endosperm in the following case. In an angiosperm a female plant having 2n = 24 is crossed with a male plant having 2n = 12.
In a flower, the parts that produce male and female gametes (germ cells) are
Give reason for the following:
All multicellular organisms cannot give rise to new individuals through fragmentation or regeneration.
Define the following term:
Reproduction
