Question # 1

The smallest cells of bacteria are celled:

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Plasmodesmata

Plasma membrane

Mycoplasms

Plasmolysis

Many bacteria in colon produce vitamin ____________ necessary for coagulation of blood.

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A

K

C

D

The example of long cells are:

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Bird eggs

Muscle cells

Nerves cells

Muscle cells & Nerves cells

Economically study of animals is called.

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Biohysics

Biochemistry

Biogeograhy

Bioeconomics

Biodiversity means :

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Variety with in a species

Variety among the species

Variety within a species and among the species

None of these

Karyokinesis is division..................... .

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Nucleus

Cytoplasm

DNA

proteins

Famous book of Jabir -Bin -Hayan is.

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Al-Kheil

A- Washoosh

Al-Nabata

Al- Abil

The scientific name of wolf is _____________

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Canis leo

Canis domestica

Canis lupus

Canis religiosa

Classification means the grouping of organisms on the basis of:

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How they feed

The features they have in common

How they respire

How they can survive

What is correct about human red blood cells?

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Have limited life span

Are capable of phagocytosis

Produce antibodies

Are multinucleate

When a plant was kept in darkness for many days, its leaves turnes yellow. Why?

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Leaves could not yet oxygen and so there was no photosynthesis

Leaves could not get light and so there was no respiration

Leaves could not get oxygen and so there was no respiration

Leaves could not get light and so there was no photosynthesis

How many pea plants were used in experiment of Mendel?

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28,000

29,000

26,000

27,000

How many contrasting pairs of characters of pea plant were studied bu mendel?

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one

three

five

seven

The parts of forebrain are;

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Thalamus, medulla and pons

Thalamus, hypothalamus and cerebrum

Thalamus, hypothalamus and cerebellum

Thalamus, cerebellum and pons

The enzyme which is used to cut the gene of interest is.

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Endonuclease

Ligase

Amylase

Lipase

In man which hormone is responsible for the development of secondary sex characters:

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estrogen

progesterone

testosterone

oxytocin

Abiotic component of the ecosystem is.

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Producers

Consumers

Decomposers

Light

The method used for the cultivation of sugar cane is:

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Cutting

Grafting

Layering

Spores

Charles Darwin published a book "on the origin of species by means of Natural Selection" in:

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1858

1859

1889

1890

The genotype of wrinkled green seeds was:

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RRyy

RyYr

RRYY

rryy

The drug which is obtanied from animals is.

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Morphine

Aspririn

Antitoxins

Tuncher iodine

During binary fission, how many cells are formed?

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Two daughter cells

Four cells

Many cells

All of these

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