Question # 1

Which of the quantitative observation:

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Colour

Smell

Beauty

Height

What would be the best experimental design for testing a hypothesis that bean plants require sodium?

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Measure the amount of sodium in a few bean plants

Grow bean plants with and without sodium

Look for sodium in leaf tissues

Analyze root contents for sodium

Down's syndrome is case of .................. .

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Autosomy

Monosomy

Trisomy

Tetrasomy

Rickets develops due to deficiency of _____________ vitamin.

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B

A

D

C

No of steps of biological method are:

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Seven

Six

Two

Eight

The total number of elements in nature are.

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92

93

91

90

Find the correct statement.

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Homologous chromosomes form pairs during mitosis

Chromosomes do not duplicate in the interphase preceding meiosis-I

Homologous chromosomes form pairs during mitosis but not mitosis

Spindles are not required during meiosis

In which group of the following is present Mg?

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Chlorophyll

Cytochrome

Haemoglobin

None of these

The exchange of parts of non-sister chromatids is called:

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Chiasmata

Linkage

Crossing over

None of these

_______________ requires the expenditure of energy.

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Diffusion

Osmiss

Active transport

Passive transport

Ulcers occur in the :

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Stomach

Duodemum

Esophagus

All

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

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Systematics

Cell Biology

Taxonomy

Physiology

One gram of lipids contains energy:

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4 kilocalories

6 kilocalories

9 kilocalories

7 kilocalories

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9th Class Biology English Medium KPK Boards Online Mcqs MCQs With Answers

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