What is the name of the process by which humans increase the frequency of particular trait in a population?
2007-01-19 08:39:30 · 6 answers · asked by JoAnna 2 in Science & Mathematics ➔ Biology
Natural selection is the biological theory that explains why living creatures seem to match their environmental niches so well – the process by which individual organisms with favorable traits are more likely to survive and reproduce than those with unfavorable traits. Insofar as there is genetic variability for the trait under selection, the genotypes associated with the favored traits will increase in frequency in the next generation. Given enough time, this passive process results in adaptations and speciation (see evolution).
Natural selection is one of the cornerstones of modern biology. The term was introduced by Charles Darwin in his groundbreaking 1859 book The Origin of Species,[1] by analogy with artificial selection, by which a farmer selects his breeding stock.
2007-01-19 08:47:40 · answer #1 · answered by robert k 2 · 0⤊ 0⤋
Joke: INBREEDING
Serious answer: I'm not sure what angle you are coming from with this question... however a mutation would abnormally create more cells of a certain type and thus increasing its frequency.
Transcription is the process by which all gene's are copied in the cell. Clarify your question and maybe I can help better.
If you are talking about human's breeding animals for a specific purpose that would be Positive/Artificial Selection where the breeder selects animals that show the positive trait they desire.
Although this creates a higher frequency of specific traits it reduces the gene pool which can be dangerous.
2007-01-19 17:19:14 · answer #2 · answered by Shelly Bean 2 · 0⤊ 0⤋
I think you may be talking about artificial selection - when humans increase the frequency of a particular trait in a population of plants or animals they are interested in by choosing which individuals to keep and breed.
2007-01-19 16:50:30 · answer #3 · answered by ecolink 7 · 0⤊ 0⤋
Selective breeding; it's how you get the different breeds of domestic animals (dogs, cats, cattle, etc.), by intentionally restricting the gene pool to those individuals that possess a trait you want to amplify. Over time, that trait becomes predominant in this small population. Let's say you like dogs with really big noses (don't know why; it just seems like something somebody might do). You pick dogs that have the biggest noses of those you have available. You then pick the puppies that have the largest noses, and breed them with other dogs that have big noses, and repeat this process over a number of generations, always selecting those individuals with the biggest noses, until you end up with a litter of puppies with shnozzes the size of softballs.
2007-01-19 16:59:34 · answer #4 · answered by theyuks 4 · 0⤊ 0⤋
i think it may be natural selection
2007-01-19 16:41:42 · answer #5 · answered by sunny skies 2 · 0⤊ 0⤋
rate?? natural selection? ich vise nich (aka idk)
2007-01-19 16:42:55 · answer #6 · answered by blah 1 · 0⤊ 0⤋