There is a long list of known examples, but you asked for one; so here it is:
When bacteria that had been growing in glucose for 10,000 generations were switched to maltose, and grown in maltose for a number of generations, three mutations were found that helped the bacteria to grow more rapidly in maltose.
an organisms color changes so it blends in with its environment better
A good mutation is BACTERIAL FLAGELLA. A bad mutation is DOWN SINDRAM
during meiosis
mutations
It's called a mutation.
A mutation
A good mutation is BACTERIAL FLAGELLA. A bad mutation is DOWN SINDRAM
Well a Silent Mutation does not affect anything so it isn't bad so its a good mutation.
A mutation is basically a change in genes. They may be good or bad. A good mutation is also known as an adaptation.
point! good luck
Not always. there are two types of mutations, A Good mutation or a bad one. A bad mutation will happen very rarely but could still happen, The chances are almost to none But there are also good mutations, The chances of getting a good mutation are 0.001 When mutations happen, And its bad, For an example a Cell If it gets a bad mutation, It will most likely not be able to compete with other cells for resources. But if the mutation is "Good" The DNA which is a genetic code will be changed to have the good mutation put it. A good mutation for a bacteria would be antibiotic resistance. Bacteria Reproduce every 20 Minutes by dividing, So on a petri dish having the bacteria lay there for 24 hours, would have More than millions of Bacteria on it. And in those moments of reproducing a Good or bad mutation WILL happen. When you use hand sanitiser you kill germs right? But hand sanitiser says 99.99%, The .001% that lives has a good mutation that makes is be Resistant to antibiotics
When the population is small or When there is no gene flow Small population, germ line mutation, beneficial mutation that gets into many progeny and a good deal of luck.
When the population is small or When there is no gene flow Small population, germ line mutation, beneficial mutation that gets into many progeny and a good deal of luck.
More varity in a population
More varity in a population
If a particular mutation occurs in nature and proves to be beneficial, it can change the entire species to begin to have the same mutation and thus the same good trait. A creature with a mutation that say, gives it a longer tail (and chicks dig a long tail) than he will mate and that mutation will allow his genes to pass on.
The permanent change in a gene or a chromosome is called Mutation.
There is no such thing as "the first duck." all things on earth evolved slowly, mutation by mutation, so that they fit their environment. Things that have good mutations live and have kids, and their kids have that mutation. That's how evolution works.