Question # 1

Flowers of wind pollination produce.

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Petals

Nectar

No nectar

Do not reproduce

Which of these cells have haploid number of chromosomes:

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Spermatogonium

Primary spermatocyte

Secondary spermatocyte

All of these

Which is not an advantage of grafting?

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The graft is identical to the parent plant.

Grafting allows the propagation of seedless fruits.

The graft combines the characteristics of two plants.

Grafting may allow for the faster production of desirable fruits.

Asexual reproduction in yeast takes place through:

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Budding

Fragmentation

Binary fission

Spore formation

Flower of which plant is pollinated by wind:

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Rose

Sunflower

Grass

Butter cup

The simple and most common way of asexual reproduction in bacteria:

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Binary fission

Multiple fission

Regeneration

Budding

Double fertilization in plants means:

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Fusion of two sperm with two egg cells.

Fusion of one sperm with egg cell and other sperm with fusion nucleus

Fusion of two sperm with single egg cell

Fusion of tube nucleus with fusion nucleus and sperm egg cell

Binary fission is seen in :

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Yeast

Planaria

Hydra

Corals

The outer most whorl of flower is called:

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Corolla

Petals

Calyx

Androecium

Many diploid oogonia are present in :

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Follicles

Sperms

Spermatids

Scrottum

The method used for the cultivation of sugar cane is:

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Cutting

Grafting

Layering

Spores

Inside testes, sperms are produced in:

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Vas deferencs

Sperm duct

Seminiferous tubules

Collecting duct

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