Question # 1

The branch of biology which deals with the study of environmental relations of organisms is called.

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Morphology

Ecology

Zoogeography

Evolution

Which of the following statement about the ribosomes is correct

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They are structurally different from free ribosomes

They are enclosed in their own membrane

They are concentrated in the cisternal space for the rough ER

They are attached to cisternal surface

Which one is not the layer or wall of heart.

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Pericardium

Myocardium

epicardium

endocardium

The specificity of an enzyme is due to its

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Cofactor

Protein nature

Active site

Globular shape

________ has eight eyes.

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Lamprey

Snake

Bat

Spider

Phytophthora infesting belongs to the group.

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Myxomycota

oomycotes

Rhodophyte

Euglenoids

One of the following is a macromolecule.

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Starch

Protein

Cellulose

Glucose

The product of succinic acid by the action of enzyme is.

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Citric acid

Pyruvic acid

Malonic acid

Fumaric Acid

Fungi can tolerate wide range of pH from.

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3-8

4-6

2-9

1-5

Accessory photosynthetic pigment xanthophyll's are

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Green in colour

Red in colour

Yellow in colour

None of these

Sweet pea belongs to which family.

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Fabaceae

Solanaceae

Rosaceae

Poaceae

Digitigrade mammals tend to walk on their

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Soles

Digits

Tips of toes

None of these

Mammalian kidney including human is adapted to conserve water by over

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20.5%

50%

99.5%

70%

All the 64 codons were tested by

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Marshall Nirenberg

Philip Leader

Har Gobind Khorana

All a,b,and,c

The average rain fall in temperate deciduous forest is between

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600-1500 mm

650 -1500 mm

750-1500 mm

700 -1500 mm

Crossing over and random assortment of chromosomes are two significant happenings of

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Mitosis

Amitosis

Meiosis

All a,b,and c

Cytokinins delay the aging of fresh leaf crops such as cabbage and lettuce as well as keeping flowers

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Attached

Fresh

Delayed

Open

In Pakistan among the animals declared extinct is

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White headed duck

Marbled teal

Houbara Bustard

Crocodile

Hypophosphatemia rickets is an X linked.

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Dominant trait

Over dominant trait

co dominant trait

Recessive trait

The corpus luteumscetres a hormone called.

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Oxytocine

Progestrone

Testostrone

Ostrogen

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

Neck Region is called.

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Lumber region

Thoracic region

Cortical region

Pelvic region

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