Edexcel IGCSE Biology 3.7 Asexual Reproduction in Plants Questions
Compare natural runners with cuttings, then explain cloning benefits and plan a fair test of growth substance on root growth.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- Distinguish natural plant methods such as runners from artificial methods such as cuttings, and describe how a runner grows into a new plant.
- Explain why growers use asexual reproduction to produce genetically identical plants with useful characteristics quickly or in large numbers.
- Plan a fair test of different plant-growth-substance concentrations on root growth from cut stems, using comparable plants, repeats and measured roots.
Edexcel IGCSE Biology 3.7 Asexual Reproduction in Plants Questions 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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