Question # 1

One of the following retrodictive cells structures are asexual

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Basidiospores

Conidia

Zygospores

Ascospores

When cocci occur in pairs, their arrangement.

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Tetrad

Diplococcus

Streptococci

Sarcina

Which is stimulus for cyclic phosphorylation.

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Low CO2

Low O2

Low ATP

Low NADPH

A structure found attached to membranes in cell it consists of 2 parts Name it.

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Golgi Apparatus

Mitochondria

Lysosome

Ribosome

Caniners are missing in.

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Carnivores

Herbivores

Omnivores

Humans

Coral reefs are mostly formed. of.

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Calcium carbonate

Silica

Chitin

Lignin

The structure involved in guttation are.

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Cuticle

Hydathodes

Lenticle

Stomata

The largest invertebrate is.

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Earth worm

Star fish

Giant squid

Ascarus

Loycopsida are commonly called.

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Whisk fern

Horse tails

Club mosses

Horn worts

The animal which feed on organic debris are

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Herbivores

Carnivores

Omnivores

Detrivores

Tests of actinopods are made up of.

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Calcium

Sodium

Silica

Potassium

Which one is parthenogenic fruit.

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Apple

Pine apple

Peach

Mango

Acetabularia is a

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Epiphyte

Alga

fungus

Angiosperm

Discharge of egg from the ovary is called.

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Oogenesis

Ovulation

Spermatogenesis

Gametogenesis

Ecosystem present on land or soil is called.

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Terrestrial

Atmosphere

Lithosphere

Both a and c

Which enzyme acts as molecular scissors.

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DNA ligase

DNA polymerase

RNA polymerase

Restriction endonuclease

Cystic fibrosis patients lack a gene that codes for trans-membrane carrier of the

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Chloride ion

Sodium ion

Potassium ion

Calcium ion

Long-day plants will flower in short days if the interrupted period is

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Long night

Short Night

Long day

Short day

The process of moulting is controlled by the nervous system and a hormone called.

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Aldosterone

Ecdysone

Oxytocin

Androgen

Between the seminiferous tubules are interstitial cells which secrete

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Cestrogen

Testosterone

Progesterone

Oxytocin

Which of the following hormones is not released by the anterior pituitary?

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Melanocyte - releasing hormone

Gonadotropin-releasing harmone

Thyroid- stimulating hormone

Growth hormone

Human skin colour is also a quantitative trait which is controlled by

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3 - 6 gene pairs

1 - 3 gene pairs

None of these

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