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1
A small part of one plant called _____________________ is inserted into the stem or root system of another plant fixed into the soil.
Root stock
Scion
Bud graft
None of these .
2
Spores are single celled or several celled reproductive bodies that are ____________________ in shape .
Cylindrical
Spherical
Oval
3
Tissue culture is used for rapid vegetative propagation as well as for the production of disease-free and pest-resistant plants. It is also known as ___________________.
Vegetative propagation
Micro propagation
Macro -propagation
4
In ____________________ reproduction, the offspring is produced by two parents involving fusion of male and female gametes.
Sexual
Asexual
Both (a) and (b) are correct.
None of these.
5
Rhizomes have buds from which outgrowths are produced which give rise to new plants _________________ .
Ginger
Strawberry
Mint
6
Which of the following are the function of reproduction ?
Maintains life on the Earth.
Enables continuity of the species.
Creates variations among populations.
All of these.
7
Assertion : In asexual reproduction, only parent is required to produce a new organisms.
Reason : Regeneration is a type of asexual reproduction.
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
If both is correct but Reason is incorrect
If Assertion is incorrect but Reason is correct
8
Assertion : Asexual reproduction takes place in some unicellular and multicellcular organisms.
Reason : Binary fission in Amoeba, budding in Hydra are some examples of asexual reproduction.
If Assertion is correct but Reason is incorrect
9
In this reproductive process adult organism breaks up into two or more pieces called __________
Fragmentation
Propogation
Both A and B
None of these
10
What form of reproduction is at work when part of the parent plant breaks off to form new plants?
Diversification
Sexual reproduction
Germination