BIOSENSORS AND BIOCHIPS QUIZ

What is the size (in kb) of the tobacco chloroplast genome?

155 kilobase

375 kilobase

55 kilobase

325 kilobase

TRUE ANSWER : ?
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Microbiosensors are based on

piezoelectric effect

ionsensitive field effect transistor

ions effect

magnetic effect

TRUE ANSWER : ?
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Gene banks conserve stocks of

seed only

vegetative material only

none of these

seed and vegetative material both

TRUE ANSWER : ?
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When farmers breed new plants they choose the pollen from one variety of plant and place it onto the stigma of another variety of plant. This type of plant breeding is known as

selective breeding

seed collection

pollination

cuttings

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Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell?

It travels on the legs of bees and sticks to the egg cell

The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell

It blows in the wind

None of these

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To qualify as a micro array the analytical device must be

all of these

ordered

microscopic

planer and specific

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Which of the following is correct about micro biosensors?

All of these

It is possible to develop disposable transducers for biosensors through mass production

Can be integrated on one chip and are useful for measuring various substrates in a small amount of sample solution simultaneously

Implantation in human body and are suitable for in-vivo measurements

TRUE ANSWER : ?
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A micro array is an ordered array of microscopic elements on a planer substrate that allows the specific binding of

whole genome

both (a) and (b)

none of these

gene or gene products

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Which of the following adaptations would it be desirable for a farmer to breed into a crop of wheat?

Resistance to pests

All of these

Early ripening

Resistance to disease

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Hypoxanthine can be measured by

urea sensor

amorphous silicon ISFET

alcohol sensor

hypoxanthine sensor

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YOUR ANSWER : ?