Selective breeding

?

Selective breeding

Advantages

  • Plants grow faster
  • Plants cope better with environmental conditions
  • Increase in yield
  • Makes new products

Disadvantages

  • In selective breeding, only certain alleles are selected. Others become rare or disappear. So, alleles that might be useful in the future are no longer available.
  • All the organisms are very similar and so if a change in conditions (e.g. a new disease) affects one organism, all thee others are affected.
  • Animal welfare is a concern. For example, some selectively bred chickens produce so much breast meat they can hardly stand up.

Evaluation

Advantages and disadvantages to be considered. Is animal welfare as important as making sure everyone is fed? That is a personal opinion, for example. 

Comments

No comments have yet been made