A. Neutrophils
B. Eosinophils
C. Basophils
D. Lymphocytes
E. Monocytes
Choose the correct answer from the options given below :
Leukocytes, commonly known as white blood cells (WBCs), are crucial components of the human immune system. They circulate in the blood and lymph fluid.
Human blood leukocytes comprise several distinct types of cells, each with specific functions. These include:
All the cell types listed (Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes) are recognized types of leukocytes found in human blood. Therefore, the correct option must include all of them.
Option 4 correctly identifies that Neutrophils (A), Eosinophils (B), Basophils (C), Lymphocytes (D), and Monocytes (E) are all found in human blood leukocytes.
| List - I | List - II |
|---|---|
| A. Topoisomerase | I. Twist the double helix at the replication fork, separating to parental strands |
| B. Helicases | II. Joining the sugar phosphate backbones of all the Okazaki fragments |
| C. DNA polymerase | III. Help to relieve the twisting strain ahead of the replication |
| D. DNA ligase | IV. Catalyze the synthesis of new DNA by adding nucleotides |
| List - I (Structure) | List - II (Taxa) |
|---|---|
| A. Absence of Archegonia | I. Pinus |
| B. Antherozoids with Cilia | II. Gnetum |
| C. Resin duct | III. Taxus |
| D. Aril | IV. Cycas |