Question # 1

Origin site of replication is one in

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Prokaryotes

Eukaryotes

None of these

Both a & b

Bipedal locomotion freed the front appendages which become adapted for

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Prey capture

Flight

Both a & b

None of these

In which developmental stage, germ layers are formed.

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Cleavage

Blastula

Gastrula

Organogenesis

In 1944 Oswald Avery along with Colin Macleod and Maclyn McCarty repeated experiments of

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Lamarck

Griffith

Darwin

Spemann

Hereditary characteristics pass from parents to offspring through genes in their

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Nuclei

DNA

Gametes

Body

Euglena is able to change its direction by the active contraction of.

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Undulating membrane

Myonemes

Cilium

Flagella

The type of Nastic movement ,which occurs in response to contact is called.

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Hyponastic

Photonasty

Nyctinasty

Thermonasty

Anti codes present on

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mRNA

tRNA

rRNA

DNA

Immediately after fertilization, the egg undergoes a series

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Morulla

Gastrulation

Cleavage

Blastula

C-Eton defined the Niche as the species.

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Behavior

Role

Address

Habitat

This condition appears as a result of point mutation.

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Down syndrome

Turner syndrome

Sickel cell Anaemia

Klinefelter syndrome

Endangered species of plants have been recorded to more than

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200

300

400

500

The interphase of meiosis lacks the stage.

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G0

G1

G2

S

During elongation the cell volume increase up to 150 fold due to uptake of

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Light

Oxygen

Water

Carbon dioxide

The concentrations of cell bodies of neuron are

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Ganglia

Dendrites

Axons

Nodules

All are related to medulla oblongata, except.

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Long term memory

Breathing rate

Blood pressure

Heart beat rate

The ultimate source of change is.

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Evolution

Mutation

Genetic drift

Migration

In non disjunction, chromosome's fail to segregate during.

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Prophase

Metaphase

Anaphase

Telephase

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