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A change in the nucleotide sequence of DNA is called a mutation.
Mutations take several forms:
* substitution: one base is replaced by another
* deletion: one or more nucleotides disappear from the sequence and the rest close up
* insertion: one or more nucleotides appear between what had been adjacent nucleotides
* duplication: a form of insertion in which a sequence of nucleotides is copied and now appears twice instead of once. Mutations can be caused by certain types of radiation, including ultraviolet (UV), and certain chemical compounds, which are therefore referred to as mutagenic.
Mutations are particularly likely to occur at a point during replication of DNA when the two strands are separated.
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What is a string of nucleotides called?
A gene
A change in a sequence of DNA is called?
Any change in the sequence of DNA nucleotides is called mutation.
What is the term for a sequence of three nucleotides that code for an amino acid in DNA?
The term for a sequence of three nucleotides that code for an amino acid in DNA is called a codon.
What is the sequence of three nucleotides in a DNA molecule called?
A sequence of three nucleotides in a DNA molecule is called a codon. Each codon codes for a specific amino acid or a signaling function in protein synthesis.
How many nucleotides are present in the DNA sequence?
The number of nucleotides in a DNA sequence can vary, but in general, a human DNA molecule contains about 3 billion nucleotides.
What are the arrangement of nucleotides in DNA called?
The arrangement of nucleotides in DNA is called the DNA sequence. It consists of a specific order of four different nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). This sequence encodes genetic information that determines an organism's traits and functions.
The sequence of nucleotides in DNA specifies the sequence of what in a protein?
The sequence of nucleotides in DNA specifies the sequence of amino acids in a protein. Each set of three nucleotides, called a codon, corresponds to a specific amino acid or a signal to start or stop protein synthesis.
What is the sequence of DNA that specifies the amino acid sequence known as?
The sequence of DNA that specifies the amino acid sequence is called a gene. Genes are made up of specific sequences of nucleotides, which are the building blocks of DNA. The genetic code dictates how these nucleotides are translated into specific amino acids during protein synthesis.
The DNA of microorganisms is made up of subunits called?
The DNA of microorganisms is made up of subunits called nucleotides. These nucleotides consist of a sugar, a phosphate group, and a nitrogenous base. The sequence of these nucleotides forms the genetic information of the microorganism.
What is the change of the base sequence of DNA?
A change in the nucleotide sequence of DNA is called a mutation.
What is a change in the base sequence in DNA?
A change in the nucleotide sequence of DNA is called a mutation.
DNA is made of repeating units or monomers called?
nucleotides. A nucleotide consists of a phosphate group, a sugar molecule (deoxyribose in DNA), and a nitrogenous base (adenine, thymine, cytosine, or guanine). These nucleotides link together in a specific sequence to form the double helix structure of DNA.
