Question # 1

Diploid parthenogenesis may occur in

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Aphids

Bees

Wasp

Honey bee

Menstruation usually lasts for

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3 - 7 days

2 - 5 days

1 - 3 days

5 - 7 days

The total gestation period in human female is usually about.

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280 days

280 week

28 months

360 days

Photoperiodism was first studied by garner and allured in.

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1918

1920

1922

1924

In nature P 730 to P 660 conversion occurs in the

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Day

Dark

Evening

Dawn

Labour pains are induced by a hormone.

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ACTH

Oxytocin

Progesterone

Corticosteroid

Soyabean is an example of plants.

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Short day

Long day

Dary neutral

Day independent

Temperature around 4^oC stimulates the production of.

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Florigen

Vernalin

Ethene

Auxins

Vehicle for transport of male gamete in land plants is

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Water

Pollen tube

Pollen grain

Wind

When will call embryo a fetus.

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After 2 months

After 3 moths

After 5 moths

After 4 months

Development of an egg into embryo without fertilization is called as.

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Parthenocarpy

parthenogenesis

Fragmentation

Meiosis

A fluid is secreted to provide liquid medium, protection and nourishment.

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Corpus luteum

Follicle

Ilterus

Sertoli

Information back from the control centre to the effectors as done by ______________ nerve path way.

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Afferent

Efferent

Both

None of these

Fluid secreted by sertoli cells provides sperms

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Liquid medium

Protection

Nourishment

All a,b,and c

Haploid males produce sperms by mitosis.

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Hydra

Man

Earth worm

Honey bee

Causative agent of genital herpes is a.

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Virus

Bacteria

fungi

Protozoan

The leaf unrolling is promoted by red light in.

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Monocot

Dicot

Ferns

Gymnosperm

Type of asexual reproduction.

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Fertilization

Vernalization

Photoperiodism

Apomixes

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