DP Biology (last assessment 2024)
Question 17N.3.SL.TZ0.09c
| Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.3.SL.TZ0.09c |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
17N.3.SL.TZ0.09c
Tobacco mosaic virus (TMV) was used as a vector in the development of a new process for Hepatitis B vaccine production.
[Source: Scholthof, K-B.G. 2000. Tobacco mosaic virus. The Plant Health Instructor. DOI: 10.1094/PHI-I-2000-1010-01. Updated 2005. © 2018 The American Phytopathological Society. All rights reserved.]
(c)
State the importance of marker genes in genetic modification.
[1]
Markscheme
marker genes show the «target» gene has been inserted
