Question # 1

Leukemia is a disease in which leucocytes increase ...................... .

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Normally

Abnormally

Both

None

Families are grouped into _____________

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Family

Order

Class

Phylum

Which one of the following convert lipids to fatty acids?

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Protease

Lipase

Both

None

For mitosis, the chromosomes of the cells are duplicated during interphase. When do the chromosomes duplicated for meiosis?

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Before meiosis 1

Before meiosis 2

During Meiosis 1

Do not duplicate

There are _______ micrometers in one millimeter.

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10

100

1000

1000000

Data are of ____________ types.

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1

2

3

4

What reason would you suggest for the fact that the total DNA content of each daughter cell is reduced during meiosis?

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Chromosomes do not replicate during the interphase before meiosis 1

Chromosomes do not duplicate between meiosis 1 and 2

Half of the chromosomes form each gamete are broken

Sister chromatids separate during anaphase of meiosis 1

The most important and visible part of cell is:

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Cell wall

Cell memebrane

Nucleus

Mitochondria

Scientific name of Orchid tree is:

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Bauhinia variegate

Allium cepa

Pisum sativum

Brassica campestris

Member of the same species living in the same place at same time. whihc level they forms.

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Habitat

Biosphere

Population

Community

Which of the following element is component of chlorophyll?

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Iron

Magnesuim

Nitrogen

Sulphur

Which of these material is not a component of the plasma membrane?

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Lipids

Carbohydrates

Proteins

DNA

things like manure, seaweed, sewage etc are example of .............. fertilizers.

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Organic

Inorganic

Both

None

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