Examine the statements below and choose the correct answer:
1.
| Statement 1: | Insulin is produced by the beta cells of the islets of Langerhans. |
| Statement 2: | Insulin is produced by the alpha cells of the islets of Langerhans. |
2.
| Statement 1: | Stem cells can divide and give rise to more stem cells through self-renewal. |
| Statement 2: | Stem cells can give rise to specialised cells with specific functions through the process of differentiation. |
3.
| Statement 1: | The variation in DNA banding pattern reveals differences among the individuals. |
| Statement 2: | The number of copies of VNTRs varies between individuals, resulting in differences in the size of the DNA segment. |