BIOSENSORS AND BIOCHIPS QUIZ

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 blows in the wind

None of these

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

TRUE ANSWER : ?
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Microbiosensors are based on

piezoelectric effect

magnetic effect

ions effect

ionsensitive field effect transistor

TRUE ANSWER : ?
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When a gardener takes a cutting from a plant, indicating that he has made a

new variety

clone

new species

mutation

TRUE ANSWER : ?
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Microarray analysis involves biological assays based on

filters

gels

small glass chips

purification columns

TRUE ANSWER : ?
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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 disease

Early ripening

Resistance to pests

All of these

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Single stranded circular RNA encapsidated with a larger RNA in a plant virus is

none of these

a viroid

a virusoid

a virion

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

325 kilobase

155 kilobase

55 kilobase

375 kilobase

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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

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

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

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Microarrays are also known as

gene chips

biochips

DNA chips

all of these

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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

cuttings

pollination

TRUE ANSWER : ?
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