enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Selective breeding - Wikipedia

   en.wikipedia.org/wiki/Selective_breeding

   Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

3. Selection limits - Wikipedia

   en.wikipedia.org/wiki/Selection_limits

   The existence of limits in artificial selection experiments was discussed in the scientific literature in the 1940s or earlier. [1] The most obvious possible cause of reaching a limit (or plateau) when a population is under continued directional selection is that all of the additive-genetic variation (see additive genetic effects) related to that trait gets "used up" or fixed. [2]

4. Tandem selection - Wikipedia

   en.wikipedia.org/wiki/Tandem_selection

   Tandem selection is a method of artificial selection in which useful traits are selected for sequentially. [1] For instance, one could select for both increased milk yield and increased milk fat content in cows via tandem selection by first selecting those with the best of one trait, production of high milk yield, and then when that trait is at a satisfactory level, by starting to select for ...

5. Wild ancestor - Wikipedia

   en.wikipedia.org/wiki/Wild_ancestor

   The red junglefowl (Gallus gallus), often believed to be an ancestor of the domestic chicken.. Most animals are tuned to modern life by artificial selection. This is either due to the pressure of early hunter-gatherers' attempts to stabilise the food supply, which resulted in the existence of domesticated farm animals, or domestication of pets which are useful to humans. [2]

6. Introduction to evolution - Wikipedia

   en.wikipedia.org/wiki/Introduction_to_evolution

   The process of artificial selection has had a significant impact on the evolution of domestic animals. For example, people have produced different types of dogs by controlled breeding. The differences in size between the Chihuahua and the Great Dane are the result of artificial selection.

7. Truncation selection - Wikipedia

   en.wikipedia.org/wiki/Truncation_selection

   In computer science, truncation selection is a selection method used in evolutionary algorithms to select potential candidate solutions for recombination modeled after the breeding method. [2] In truncation selection the candidate solutions are ordered by fitness, and some proportion T% of the top fittest individuals are selected and reproduced ...

8. Average rate on a 30-year mortgage in the US falls to 6.69% - AOL

   www.aol.com/average-rate-30-mortgage-us...

   The average rate on a 30-year mortgage in the U.S. eased again this week, slipping to its lowest level since late October. The rate dropped to 6.69% from 6.81% last week, mortgage buyer Freddie ...

9. Index selection - Wikipedia

   en.wikipedia.org/wiki/Index_selection

   For instance, height's weighting could be ten and coat darkness could be one. This weighting value is then multiplied by the observed value in each individual animal and then the score for each of the characteristics is summed for each individual. This result is the index score and can be used to compare the worth of each organism being selected.