Question # 1

A testable statement is (a/an)

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Observation

Hypothesis

Theory

Law

Lignin is present in:

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Primary wall

Secondary wall

None of above

The size of a virus is _____________

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40-50 nm

20-40 nm

10-40 nm

30-50 nm

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

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Systematics

Cell Biology

Taxonomy

Physiology

It deals with compounds of linving organism.

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Biophysics

Biochemisty

Bio economics

Biometery

The Klinefelter's syndrome males have an extra .................... .chromosomes.

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Sex

Autosome

Both 1 & b

None

Which of these materials is not a component of plasma membrane?

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Lipids

Carbohydrates

Proteins

DNA

A species is a group of natural population which can:

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Interbreed and produce offsprings

Interbreed in nature and produce offspring

Interbreed and produce fertile offspring

Interbreed in nature and produce fertile offspring

If you observe cell like this one, what phase of mitosis is it?

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Anaphase

Telophase

Metaphase

Prophase

.......... is the most abundant .

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Chlorophyll a

Chlorophyll b

Chlorophyll c

Chlorophyll d

Which phase of meiosis is similar to mitosis?

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Prophase I

Telophase II

Meiosis I

Meiosis II

Glycerol is used to:

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In Textile

In production of vineger

In printing

In Beverage

In the food chain ''grass→grasshopper''→sparrow→ hawk'',the secondary consumers is:

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grass

grasshopper

sparrow

hawk

The materials flow forms one trophic level to the next by means of:

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food chains

food webs

energy pyramids

both A and B

Which organ filter the blood.

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Intestine

Kidney

Stomach

Brain

Adaptions found in plants to keep the balance of carbon dioxide and oxygen are:

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photosynthesis

stomata

transpiration

all to these

It is the process by which the better genetic variations become more common in successive generations of population:

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Variation

Artificial selection

Selective breeding

Natural selective

Formation of messenger RNA from DNA is called:

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Translocation

Transcription

Transduction

Translation

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

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Endonuclease

Ligase

Amylase

Lipase

Binary fission is seen in :

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Yeast

Planaria

Hydra

Corals

Genes are located on:

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Chromosomes

proteins

nucleotide

DNA

It is change in characteristics of a population or species of organisms over the course of generations:

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Replication

Transcription

Evolution

Translation

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