Challenge Prelims V1.0 – Day 69 – GS Paper (Science and Technology)

1. With reference to stem cells, consider the following statements.

1. They develop into different types of specialized cells in the human body.
2. They are only found inside an embryo.

Which of the statements given above is/are correct?

2. The term Epigenetics is commonly seen in the news. Which of the following statements best describes this term?

3. How many among the following can be the advantages of using the ‘Embryo Transfer Technology’ in animal husbandry?

1. It can be used to increase the number of offsprings.
2. It can be used to improve genetic structure of offsprings.
3. The offsprings born will be free from disease.

Select the correct answer using the code given below.

4. With reference to White Blood Cells in the human body, consider the following statements:

1. White Blood Cells are white in color due to lack of haemoglobin.
2. White Blood cells are the first line of defense against pathogens.
3. Neutrophils, Lymphocytes, Basophils and Erythrocytes are some of the white blood cells.

How many of the statement given above is/are correct?

5. Consider the following pairs:

Colors of Biotechnology: Area of Biotech Activities

1. Yellow: Medicine and Human Health
2. Brown: Arid Zone and Desert Biotechnology
3. Gold: Bioinformatics
4. Dark: Bioterrorism and Biowarfare

How many of the pairs given above is/are correctly matched?

6. Consider the following statements with regard to the National Genomic Grid:

1. It is a pan India program to study genes of all patients suffering from all types of genetic diseases.
2. The study will utilize the technique of genome sequencing.

Which of the statements given above is/are correct?

7. DNA is the molecule that carries genetic information for the development and functioning of an organism. Consider the following statements with respect to DNA:

1. DNA molecule is a double helix consisting of two strands of DNA linked by ionic bonds.
2. In a DNA molecule, there are four nucleotides present in equal amounts.
3. Among the four bases in DNA, Adenine always pairs with Guanine and Cytosine always pairs with Thymine.

How many of the statements given above are correct?

8. How many of the following is/are the applications of recombinant DNA technology?

1. Synthesis of human insulin
2. Insect-resistant crops
3. Diagnostic tests for hepatitis and HIV
4. Environmental cleaning

Select the correct answer using the code given below.

9. Consider the following statements regarding transgenic crops in India:

1. Cotton is the only transgenic crop that is being commercially cultivated in India.
2. Cry2Ai is a gene found in cotton that is believed to make the crop resistant to the pink bollworm.

Which of the statements given above is/are correct?

10. Consider the following statements with respect to RNA interference (RNAi):

1. RNAi is the process of gene silencing initiated by a double-stranded RNA (dsRNA).
2. RNAi takes place in all eukaryotic organisms as a method of cellular defense.
3. RNAi is extensively used in creating pest-resistant plants.

How many of the statements given above are correct?

11. Which of the following statements with respect to viruses is not correct?

12. Which one of the following statements best describes the purpose of ‘Site Directed Nuclease (SDN)’?

13. Consider the following statements:

1. A cloned animal is not the same as a genetically modified animal.
2. A cloned animal shares the same DNA as another animal, while a genetically modified animal has had a change made to its DNA.

Which of the statements given above is/are correct?

14. With reference to Germline gene therapy (GGT), consider the following statements:

1. In GGT germ cells are modified by the introduction of functional genes into their genomes.
2. This type of therapy allows for the correction of disease-causing gene variants that passed down from generation to generation.

Which of the statements given above is/are correct?

15. With reference to the Lab-grown meat consider the following statements:

1. It is a type of meat that is prepared from the regeneration of cell animal cultures in a controlled lab environment.
2. Consumption of lab-grown meat over traditional meat is more beneficial for the environment.

Which of the statements given above is/are correct?