User interface language: English | Español

Date May 2018 Marks available 3 Reference code 18M.3.SL.TZ1.9
Level Standard level Paper Paper 3 Time zone Time zone 1
Command term Outline Question number 9 Adapted from N/A

Question

Transformed leaf discs containing recombinant DNA can be used to grow genetically modified crop plants. Discs taken from the new plant can be used to monitor successful uptake of the recombinant DNA.

State one other method by which recombinant DNA can be introduced into a plant.

[1]
a.

Outline the role of bioinformatics in the genetic modification of plants.

[2]
b.

Outline the potential advantages of genetically modified plants.

[3]
c.

Markscheme

viral/bacterial vector / (micro)injection / electroporation / liposomes / biolistics

a.

a. bioinformatics allows rapid analysis of large numbers of (genetic) samples 

b. target genes can be identified/recognized rapidly 

c. target gene linked to sequences that control its regulation are also identified 

d. target gene introduced into host

b.

a. bulk production of important chemicals/medicines 

b. resistance to certain environmental conditions/pathogens 

c. resistance to herbicides/pesticides / pesticide production by plants (e.g. Bt corn) 

d. increase yield/nutritional value 

e. increase shelf life 

f. example of plant modified and nature / purpose of modification

c.

Examiners report

[N/A]
a.
[N/A]
b.
[N/A]
c.

Syllabus sections

Option B: Biotechnology and bioinformatics » Option B: Biotechnology and bioinformatics (Core topics) » B.2 Biotechnology in agriculture
Show 81 related questions
Option B: Biotechnology and bioinformatics » Option B: Biotechnology and bioinformatics (Core topics)
Option B: Biotechnology and bioinformatics

View options