Question # 1

The bio diversity of any region depends on:

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Climate

Altitude

Soil and other species

All of these

Science is based on ____________

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Obsrvation

Theory

Hypothesis

Law

Plastids are of ......... types.

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1

2

3

4

Which one of these in "not" a characteristic of hypothesis?

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Must be consistent with all available data

Must be testable

Must be correct

Must predictions

Which phase of meiosis is similar to mitosis?

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Prophase I

Telophase II

Meiosis I

Meiosis II

................. is an important port of ulcer formation.

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Cigarette smoking

Over eating

Spicy food

All

Chromosomes become double during:

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G₁

G₂

G₀

S phase

When we work hard we suffer from muscle fatigue because muscle cells:

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Carry out aerobic respiration at faster rate and so are tired

Carry out anaerobic respiration and so-accumulate more CO₂

Carry out anaerobic respiration and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so burst

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

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Lipids

Carbohydrates

Proteins

DNA

Experimentation is only a step of the scientific process but it is very important step because it always:

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Gives the biologist a correct result

Allows rejection of some alternative hypothesis

Ensures that hypothesis can be confirmed with certainity

Give scientists a chance to work in the laboratory

Chromatains are condensed during:

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Anaphase

Prophase

Anaphase

Metaphase

Uncoiling of chromosomes take place during:

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Anaphase

Telophase

Anaphase

Metaphase

What happens when a mismatched blood group is injected in recipient?

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Antibodies of the recipient's blood destroy donor's RBCs

Antibodies of the donor's blood breakdown recipient's RBCs

Both of these can happen

None of these and such transfusion can be safe

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