Read the following table & passage and answer Question Nos. 15 to 17:
International Comparison of Human Development
Human Development Categories
| Level of Human Development | Score in Development Index |
| Very High | above 0.800 |
| High | between 0.700 up to 0.799 |
| Medium | between 0.550 up to 0.699 |
| Low | below 0.549 |
The priority of countries with high level of human development is providing education and healthcare. They are investing more in social sector. Altogether, a higher investment in people and good governance has set this group of countries apart from others.
Countries with medium levels of human development have emerged in the period after the Second World War. Many of these countries have been rapidly improving their human development score by adopting more people-oriented policies and reducing social discrimination.
Study the given below single strand of deoxyribonucleic acid depicted in the form of a “stick” diagram with 5′ – 3′ end directionality, sugars as vertical lines and bases as single letter abbreviations and answer the questions that follow.
Name the covalent bonds depicted as (a) and (b) in the form of slanting lines in the diagram.
How many purines are present in the given “stick” diagram?
Draw the chemical structure of the given polynucleotide chain of DNA.
| Concentration of KCl solution (mol/L) | Conductivity at 298.15 K (S cm-1) | Molar Conductivity at 298.15 K (S cm2 mol-1) |
|---|---|---|
| 1.000 | 0.1113 | 111.3 |
| 0.100 | 0.0129 | 129.0 |
| 0.010 | 0.00141 | 141.0 |