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Mutations are changes in the nucleotide sequence of an organism's SNA, ultimately creating genetic diversity.
They can be caused by mutagens--chemical or physical agents that interacts with DNA and causes mutations.
They can also occur simply by error in DNA copying during cell reproduction.
These situations are random, as in they are not planned and can happen to any DNA strand at any time.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoYou may be referring to a "Genetic drift."
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Mutations that occur at random are called?
Mutations that occur at random are called spontaneous mutations.
How can new mutations be added to a gene pool?
Mutations are added to a gene pool when a mutation (completely random) occurs in a person. They will pass this gene on to their offspring (and so on, and so forth).
Mutations?
a random error in gene replication that leads to a change
Can mutations result from a need?
No! This was a failed theory. Mutations always occur on a random basis ... the result of which is that most of them are down-right bad for the organism. (Remember, evolution is "directed" by death - NOT the survival of the fittest as is often stated.)
Which two factors provide the genetic basis for variation within a species?
mutations and sexual reproduction (due to random orientation of bivalents about the equatorial spindle during metaphase I and pairs of chromatids during metaphase II; fusion of male and females gametes during fertilization; and reciprocal crossing over)
Mutations that occur at random are called?
Mutations that occur at random are called spontaneous mutations.
Can mutations be predicted?
No, Mutations can not be predicted and have no numeral order. Mutations are totally random AND MAY NOT BE PREDICTED!
What are the main sources of heritable variation in a population?
mutations, recombination, random pairing of gametes
How can scientists tell if there is a mutation?
How can scientist tell if there are mutations
What is a sudden permanent random change in an organism's DNA?
mutations
What is a source of genetic variation that refers to a random error in the genetic code?
Mutations involve changes in the DNA code.
Scientists use radiation and chemicals to induce what?
It's mutations.
A characteristic of mutations is that they usually?
Mutations are random. They may be beneficial, detrimental, or have no effect at all.
What is the source of genetic variation that refers to random error in the genetic code?
Mutations
How did scientists produce oil eating bacteria?
Inducing mutations in bacteria
What is variation caused by?
It is caused by crossing over in sexual reproduction and random mutations in DNA.
Adaptation and change is dependent upon mutations and random genetic combinations passed to offspring?
no
