Edexcel IGCSE Biology 3.7 asexual reproduction in plants
Practise plant asexual reproduction by describing runners or cuttings, then explaining why growers use clones and controlled methods.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- Describe strawberry runners as stems that produce genetically identical new plants.
- Explain why cuttings give growers clones with the same useful characteristics quickly.
- Plan cutting investigations by varying growth substance concentration and controlling plant size.
3.7 Asexual reproduction in plants question 1
[Maximum number: 2]
A species of grass has a diploid chromosome number of 12.
Grass plants can also be produced by asexual reproduction.
New plants are produced from the roots of a parent plant.
Describe why it is an advantage for commercial growers to produce plants by asexual reproduction.
An answer that makes reference to two of the following:
- plants will be genetically identical / have same gene / eq
- plants will have same characteristics / phenotype / eq
- many are produced / quick / eq
- can be produced at any time of year / eq
Allow favourable
characteristics
retained
Allow high yield
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