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WorksheetsBIO--NTSE
Total questions: 10
Worksheet time: 5mins
There is a very yellow dust which comes away on fingers whenever we touch the middle of the flower.These tiny yellow grains are one of the most precious substances in nature because they contain the secret of plant life.what is the dust called?
Pollen
Sperm
Spore
Sporocyst
Select the incorrect statement regarding AIDS.
It is an immune-deficiency disease
HIV virus has RNA as its genetic material
HIV positive mother can give birth to HIV positive baby
The time lag between the infection and appearance of AIDS symptoms may vary from week to month.
Genes are made of
Hristones
Poly nucleotides
Hydrocarbon
Lipoproteins
Banana fruits are seedless ,because:
Auxins are sprayed for rapid development of fruit
Vegetative propagation of plant
They are triploid plants
Fruits are artificially ripened
Reproducing new plants by cells instead of seeds is known as:
Biofertilizer
Mutation
Tissue culture
Lootation
A small portion of sugar cane stem between the two successive nodes is cut off and down in the soil normally. New plants will be:
Formed normally
Not formed
Without juice
Without nodes
Carrot is micro propagated through:
Embryo
Embryoids
Shoot culture
Callus
Which one of the following is a fruit?
Ginger
Sweet potato
Radish
Ladys finger
Roses and banana are usually propagate through
Parthenocarpy
Cutting
Grafting
Layering
Which is the most common method of reproduction in majority of fungi and bacteria?
Binary fission
Multiple fission
Budding
Spore formation
