MCQ on Biotechnology and Genetic Engineering Set 3: Biology Quiz

MCQ on Biotechnology and Genetic Engineering
Quiz Set123

Question 1. Recombinant DNA Technology (Genetic Engineering) allows genes to be transferred.

  1. Across different species of plants.
  2. From animals to plants.
  3. From micro-organisms to higher organisms.

Select the correct answer using the codes given below.

(A) Only 1

(B) 1 and 3

(C) 2 and 3

(D) All of these

View Answer
(D) All of these

Question 2. Which of the following statements is/are correct regarding vegetative propagation of plants?

  1. Vegetative propagation produces clonal population.
  2. Vegetative propagation helps in eliminating the virus.
  3. Vegetative propagation can be practised most of the year.

Select the correct answer using the code given below.

(A) 1, 2 and 3

(B) Only 1 and 3

(C) Only 2 and 3

(D) Only 1

View Answer
(B) Only 1 and 3 

Question 3. Consider the following as objectives of the New Science and Technology Policy, 2003 and state which is/are correctly stated, with the help of codes given below?

  1. Optimal utilisation of existing physical and knowledge resources.
  2. Development of innovative technologies.
  3. Development of systems and technologies for mitigation and management of natural hazards.
  4. Management of intellectual property.

Code

(A) Only 1 and 2

(B) 1, 3 and 4

(C) 1, 2 and 3

(D) All the four

View Answer
(D) All the four

Question 4.

  • Assertion (A): Dolly was the first cloned mammal.
  • Reason (R): Dolly was produced by in-vitro fertilization.

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(B) (A) is true, but (R) is false

Question 5. Consider the following effects of genetic engineering.

  1. Disease resistance
  2. Growth promotion
  3. Animal cloning
  4. Human cloning

Which of the above, that have been tried with a certain amount of success include.

(A) 1, 2 and 3

(B) 1, 2 and 4

(C) 2, 3 and 4

(D) 1, 3 and 4

View Answer
(A) 1, 2 and 3

Question 6. At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us?

  1. It is possible to know the pedigree of livestock.
  2. It is possible to understand the causes of all human diseases.
  3. It is possible to develop disease resistant animal breeds.

Which of the statements given above is/are correct?

(A) 1, 2 and 3

(B) 1 and 3

(C) Only 2

(D) 1 and 2

View Answer
(B) 1 and 3 

Question 7. Steps of Recombinant DNA technology are given below.

  1. Identification and isolation of the genetic material.
  2. Fragmentation of DNA.
  3. Obtaining the foreign gene product.
  4. Downstream processing.
  5. Ligation of DNA fragmentation into the vector.
  6. Isolation of desired DNA fragments.
  7. Amplification of gene of interest.
  8. Transfer of Recombinant DNA into the host cell/organism.

The correct sequence of steps is:

(A) 8 → 6 → 7 → 5 → 1 → 4 →2 → 3

(B) 1 → 2 → 6 → 7 → 5 → 8 →3 → 4

(C) 1 → 4 → 3 → 2 → 5 → 7 →6 → 8

(D) 3 → 1 → 2 → 4 → 6 → 5 →7 → 8

View Answer
(B) 1 → 2 → 6 → 7 → 5 → 8 →3 → 4

Question 8. With reference to ‘stem cells’, frequently in the news, which of the following statement(s) is/are correct?

  1. Stem cells can be derived from mammals only.
  2. Stem cells can be used for screening new drugs.
  3. Stem cells can be used for medical therapies.

Select the correct answer using the codes given below.

(A) 1, 2 and 3

(B) Only 3

(C) 2 and 3

(D) 1 and 2

View Answer
(C) 2 and 3

Question 9.

  • Assertion (A): Insect resistant transgenic cotton has been produced by inserting Bt gene
  • Reason (R): The Bt gene is derived from a bacterium.

Code

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Question 10. Consider the given statements.

  1. BT brinjal is created by inserting its genome, into the gene of soil fungus.
  2. The seeds of BT brinjal one terminator seed so farmers have to buy it before every weather from seed companies.
  3. This is also a fact that it can affect the user’s health negatively.
  4. The other threat is that its insertion may affect adversely bio-diversity.

Choose the right answer according to these codes.

(A) 1, 2, 3 and 4

(B) Only 3 and 4

(C) Only 2 and 3

(D) Only 1, 2 and 3

View Answer
(B) Only 3 and 4

Question 11. With reference to agriculture in India, how can the technique of ‘genome sequencing’, often seen in the news, be used in the immediate future?

  1. Genome sequencing can be used indentify genetic markers for disease resistance and drought tolerance in various crop plants.
  2. This technique helps in reducing the time required to develop new varieties of crop plants.
  3. It can be used to decipher the host-pathogen relationship in crops.

Select the correct answer using the code given below.

(A) 1, 2 and 3

(B) Only 1 and 3

(C) Only 2 and 3

(D) Only 1

View Answer
(A) 1, 2 and 3

Question 12. Consider the following statements and choose the correct ones using the codes given below.

  1. The flavr-savr tomato was the first genetically engineered crop product to be commercialised.
  2. Ripe fruits of flavr-savr remain firm for longer duration and can be transported to market after vine-ripening.
  3. Ripe fruits of flavr-savr have colour but not the full array of vine ripened tomato flavours.

Code

(A) 1 and 3

(B) 1, 2 and 3

(C) 1 and 2

(D) 1 and 3

View Answer
(B) 1, 2 and 3

Question 13. Consider the following techniques/ phenomena.

  1. Budding and grafting in fruit plants.
  2. Cytoplasmic male sterility.
  3. Gene silencing.

Which of the above is/are used to create transgenic crops?

(A) None

(B) 1 and 3

(C) 2 and 3

(D) Only 1

View Answer
(C) 2 and 3

Question 14. Consider the following kinds of organisms.

  1. Bacteria
  2. Fungi
  3. Flowering plants

Some species of which of the above kinds of organisms are employed as bio-pesticides?

(A) 1, 2 and 3

(B) 1 and 3

(C) 2 and 3

(D) Only 1

View Answer
(A) 1, 2 and 3

Question 15.

  • Assertion (A): ‘Goldern rice’ is a biotechnological achievement to the benefit of consumers as much as the farmers.
  • Reason (R): The yellow colour of this rice reflects a high level of beta carotene, a compound that is converted to vitamin A in the body.

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Question 16.

  • Assertion (A): In human being, the females play a major role in determining the sex of the offspring.
  • Reason (R): Women have two ‘X’ chromosomes.

Code

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(A) (A) is false, but (R) is true

Question 17.

  • Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.
  • Reason (R): DNA fragments can be manipulated using restriction endonucleases and DNA ligases.

Code

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Question 18. Samples taken for DNA testing in criminal investigation can be _______.

  1. Blood cells
  2. Bone cells
  3. Hair strands
  4. Saliva

(A) 1, 2, 3 and 4

(B) Only 2 and 3

(C) Only 1 and 4

(D) Only 1, 2 and 3

View Answer
(A) 1, 2, 3 and 4

Question 19. Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?

  1. To enable them to withstand drought.
  2. To increase the nutritive value of the produce.
  3. To enable them to grow and do photosynthesis in space ships and space stations.
  4. To increase their shelf life.

Select the correct answer using the code given below.

(A) 1, 2, 3 and 4

(B) 1, 2 and 4

(C) 3 and 4

(D) 1 and 2

View Answer
(B) 1, 2 and 4 

Question 20.

  • Assertion (A): ‘DNA Finger Printing’ has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
  • Reason (R): Trace evidence such as hairs, saliva and dried semen are adequare for DNA analysis.

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Question 21.

  • Assertion (A): ‘DNA Fingerprinting’ has become an important test to establish paternity and identity of criminal of rapecases.
  • Reason (R): Small samples such as hair, dried blood and semen are adequate for DNA analysis.

Select the correct answer using the code given below.

(A) (A) is false, but (R) is true

(B) (A) is true, but (R) is false

(C) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

View Answer
(D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Question 22. In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?

  1. Iris scanning
  2. Retinal scanning
  3. Voice recognition

Select the correct answer using the code given below. 

(A) 1, 2 and 3

(B) Only 1 and 3

(C) Only 2 and 3

(D) Only 1

View Answer
(A) 1, 2 and 3
Quiz Set123