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It is called a point mutation. Depending on where the bases are, as far as in the codon, some are not harmful.

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Q: When one pair of bases is replaced in a gene it is called?
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Related questions

What is each gene of a gene pair called?

The answer is an allele.


What is a gene pair called?

A gene has two sets of DNA.


Can single gene on a chromosome contain only one pair of nitrogen bases?

No because a single gene is made up of many bases in a row in a chromosome that may contain anywhere from several hundred to a million or more nitrogen bases.


What are pairs called?

A gene pair is called an allele. An allele is an alternative form of a gene that is located on a specific chromosome at a specific place.


What is a gene pair that consists of a dominate allel and a recessive allel?

That is called heterozygous or it is called a hybrid.


When a particular inherited characteristic is controlled more by one gene of a pair than by the other the stronger gene is called?

dominant


What are different versions of the same gene called?

The chromosomes in a pair carry the same genes in the same places. There are different versions of the same gene. These different versions of the same gene are called alleles.


Each gene of a gene pair is an?

allele


What do you call one gene of a pair for a SPECIFIC trait is called?

Having two different alleles is said to be....?-Heterozygous


What is the gene mask other genes in a gene pair?

the liver gene


What is a gene pair called when is consist of two dominant alleles or two recessive alleles?

Homozygous


Each gene of a gene pair is a?

Nitrogen base