Question
a. Identify A. Which enzyme joined them?
b. Identify B. What is its function ?

b. Identify B. What is its function ?


a. A is Okazaki fragment. These fragments are joined by DNA ligase enzyme
b. B is RNA primer. It provides 3’ OH to which nucleotide gets attached by ester bond.
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| Column A | Column B |
| (1) Brown heart disease | ———— |
| (2) Bakane disease of Rice | ———— |
| (3) Die back of shoot | ———— |
| (4) Degreening of Banana | ———— |
Column I | Column II |
(1) Homologous organs | ————- |
(2) Analogous organs | ————- |
(3) Vestigial organs | ————- |
(4) Connecting links | ————- |
| Waves on ECG | Heart Activity | Caused due to |
| P wave | Atrial contraction | —————- |
| QRS wave | —————– | Ventricular depolarization |
| T wave | —————– | Ventricular repolarization |

| Pattern of population growth | Name of the countries |
| (1) Rapid growth | ————– |
| (2) Slow growth | ————— |
| (3) Zero growth | ————– |
| (4) Negative growth | ————– |
| Column A | Column B |
| (1) Occupational disorders | ———— |
| (2) Disorders due to smoking and air pollution | ———— |
| (3) Disorders due to viruses and bacteria | ———— |

Column A | Column B |
(1) Lac Operon | ————– |
(2) Central dogma in retroviruses | ————– |
(3) Coined the term Genome | ————– |
(4) Coined the term Genomics | ————– |
(5) Enzymatic synthesis of RNA | ————– |
(6) DNA is associated with histones and non-histones | ————– |