Showing posts with label biology module 3 1.asexual reproduction and vegetative propagation. Show all posts
Showing posts with label biology module 3 1.asexual reproduction and vegetative propagation. Show all posts

Jul 8, 2015

Biology Module 3 - 1.Asexual reproduction and Vegetative Propagation 1.3 Explain the principles and the importance of vegetative as exemplified by the use of cuttings and tissue culture

1.3 Explain the principles and the importance of vegetative as exemplified by the use of cuttings and tissue culture


Principles of Cutting eg. in sugar cane


  • a stem with at least one node or bud is cut
  • stem then is covered in a thin layer of soil
  • new shoots grow from buds and new underground stem (rhizome) is formed

Biology Module 3 - 1. Asexual reproduction and Vegetative Propagation 1.2 discuss the advantages and disadvantages of asexual reproduction

 1.2 discuss the advantages and disadvantages of asexual reproduction


Advantages 



  • If parent is well adapted so will offspring
  • young plants use parents as source of nutrients until they develop their own shoot and root system
  • only one parent is needed so parent does not need to wait for a mate

Biology Module 3 - 1. Asexual reproduction and Vegetative Propagation 1.1 Explain the term Asexual Reproduction


1.1 Explain the term Asexual Reproduction 



Asexual reproduction - the production of new individuals from a single parent without the production and fusion of gametes. 


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Binary fission - the splitting of one cell into two. Example prokaryotes (bacteria)