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Biosensors And Biochips Online Exam Quiz

Important questions about Biosensors And Biochips. Biosensors And Biochips MCQ questions with answers. Biosensors And Biochips exam questions and answers for students and interviews.

1. Microarray analysis involves biological assays based on

Options

A : gels

B : filters

C : purification columns

D : small glass chips

2. The inosine and hypoxanthine can be determined simultaneously by using

Options

A : inosine sensor

B : inosine and hypoxanthine sensor

C : amorphous silicon ISFET

D : urea sensor

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

Options

A : a virion

B : a viroid

C : a virusoid

D : none of these

4. 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?

Options

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

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

C : It blows in the wind

D : None of the above

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

Options

A : 55 kilobase

B : 155 kilobase

C : 325 kilobase

D : 375 kilobase

6. A micro array is an ordered array of microscopic elements on a planer substrate that allows the specific binding of

Options

A : gene or gene products

B : whole genome

C : both (a) and (b)

D : none of these

7. To qualify as a micro array the analytical device must be

Options

A : ordered

B : microscopic

C : planer and specific

D : all of these

8. Biochips are made up of

Options

A : semi-conducting molecules inserted into the protein frame work

B : conducting molecules inserted into the protein frame work

C : non-conducting molecules inserted into the protein frame work

D : any of the above

1. Microbiosensors are based on

Options

A : ions effect

B : ionsensitive field effect transistor

C : piezoelectric effect

D : magnetic effect

3. 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

Options

A : selective breeding

B : pollination

C : seed collection

D : cuttings

4. Which of the following technology is used for micro array manufacturing?

Options

A : Photolithography

B : Ink jetting

C : Contact printing

D : All of these

5. Hypoxanthine can be measured by

Options

A : hypoxanthine sensor

B : amorphous silicon ISFET

C : urea sensor

D : alcohol sensor

6. When a gardener takes a cutting from a plant, indicating that he has made a

Options

A : clone

B : mutation

C : new species

D : new variety

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

Options

A : Early ripening

B : Resistance to disease

C : Resistance to pests

D : All of these

8. Which of the following is correct about micro biosensors?

Options

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

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

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

D : All of these

9. Microarrays are also known as

Options

A : biochips

B : DNA chips

C : gene chips

D : all of these

10. Gene banks conserve stocks of

Options

A : seed only

B : vegetative material only

C : seed and vegetative material both

D : none of these

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?

Options

A : a. It travels on the legs of bees and sticks to the egg cell

B : b. The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell

C : c. It blows in the wind

D : d. None of the above

When a gardener takes a cutting from a plant, indicating that he has made a

Options

A : a. clone

B : b. mutation

C : c. new species

D : d. new variety

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

Options

A : a. a virion

B : b. a viroid

C : c. a virusoid

D : d. none of these

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