Question # 1

Prior to cell division, each chromosome replicates or duplicates its genetic material. The products are connected by a centromere and are called:

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Sister chromosomes

Homologous Chromosomes

Non-sister chromatids

Sister chromatids

Famous Book Al abal written by.

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Jabir Bin Hayan

Abdul Malik Asmai

Darwin

Bu Ali Sina

Species that are in the same______are more closely related then,

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Phylum.......class

Family.......order

Class.... order

Family.......genus

The number of bioelemets in nature is.

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13

14

15

16

P.Sativum is the scientific name of:

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Onion

Pea plant

Mustard plant

Fungi

ABO blood group system was discovered in 1901 by .................. .

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Camillo

Karl land Steiner

Robert Hooke

Mathias Schleiden

Oesophague is .......... centimeters long.

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10 cm

25 cm

20 cm

None

Which of the following plastids have chlorophyll and help in photosynthesis?

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Chloroplasts

Leucoplast

Chromoplasts

All of these

Which of the following variable is least likely to affect an enzymes rate of reaction?

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Temperature

pH

Carbon dioxide concentration

Enzyme concentration

The large intestine is about ................ meters long.

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1.2

1.3

1.4

1.5

The pancreatic juice contains ............. enzymes.

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Two

Three

Four

Five

Human insulin was prepared by becteria first time:

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2002

1990

1970

1978

The type of symbiotic relationship in which one member get benefit and other is harmed is called.

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Parasitism

Mutualism

Commensalism

Predation

Aspirin belongs to the group of.

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Derived from Animals

Derived from plants.

Synthetic Drugs

Derived from bacteria.

The recovery of one of paper can save how many trees.

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17

170

200

1000

What an embryologist lan Wilmot produced from the body cell sheep in Scotland 1997?

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Sheep

Goat

Cow

Buffalo

_________ is the smallest bone in our body.

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Thigh

Vertebrae

Ankle

Knee-cap

The structural and functional unit of nervous system is:

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neuron

nephorn

nerve

cell body

It is not a disorder of skeletal muscle:

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arthritis

osteoporosis

tatney

osteo-arthritis

During binary fission, how many cells are formed?

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Two daughter cells

Four cells

Many cells

All of these

Organisms in the ecosystem that are responisble for recycling of plant and animal wastes are:

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Producers

Consumers

Decomposers

Compititors

The skeleton found outside the body is called:

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Endoskeleton

Exoskeleton

Hydroskeleton

Fibroskeleton

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