Question # 1

Programmed and organized death of cell is known as.

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Apoptosis

Cancer

Necrosis

Metastasis

Rickets is due to deficiency of vitamin.

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A

C

D

E

The means by which recombinant DNA is introduced into a host call is called

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Plasmid

Carrier

Vector

Lifter

PSC 101 has antibiotic resistance gene for.

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Tetracycline

Neomycin

Ampicillin

Ergotine

Genes that code for therapeutic and diagnostic proteins are incorporated into the animal's DNA and the proteins appear in the animal's

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Urine

Blood

Sweat

Milk

The autosomal non disjunction in man in which 21st pair of chromosome fail to segregate resulting in gametes with 24 chromosomes is.

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Down's syndrome

Klinfilter syndrome

Turner's syndrome

Jacob's syndrome

Nuclear membrane disorganizes at the beginning of

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Prophase 1

Metaphase 1

Anaphase 1

Telophase 1

Each bivalent has

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Twochromatids

Four chromatids

Both a & b

None of these

The joint that allows the movement in two directions is called.

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Cartilaginous joints

Hinge joints

Syrovial joints

Ball and Socket joints

_______ regulates the kidney's retention of water.

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Prolactin

Oxytocin

Thyroxin

Vasopressin (ADN)

According to one of the speculations life may have begun deep in the oceans in underwater hot springs called hydrothermal

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Apertures

Gaps

Vents

Outlets

Archaeobacteria can tolerate temperature upto.

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120 ^oC

140 ^oC

160 ^oC

180 ^oC

In 1953 Watson and Crick proposed structure of the

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RNA molecule

ATP molecule

DNA molecule

NAD molecule

For evaporative cooling bats use

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Saliva

Urine

Sweat

All a,b,andc

In which of the following situations would evoluation be lowest for an inter breeding population?

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Migration Selection Pressure Variation(Due to Mutation) Absent Low Low

Migration Selection Pressure Variation(Due to Mutation) Absent High High

Migration Selection Pressure Variation(Due to Mutation) High Low High

Migration Selection Pressure Variation(Due to Mutation) High High Low

The temperature more effective for vernalization is

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4 ^oC

8^oC

12^oC

16^oC

Transfer of genetic material from one cell to other that can alter the genetic make up of recipient cell is called.

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Transcription

Replication

Translation

Transformation

Tobacco plant produces flowers in.

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Spring

Summer

Autumn

Winter

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