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Is a DNA lesion caused by UV light irradiation. When DNA strand is exposed to UV light, adjacent pyrimidine residues on a DNA strand can become covalently linked. Such pyrimidine dimers cannot fit into a double helix, and so replication and gene expression are blocked until the lesion is removed. This kind of lesions are common and therefore DNA is continually being repaired by specific enzymes that make the job.
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What does photolyases do to thymine diamers?
Photolyases, also known as light-repair enzymes, use visible light energy to separate the dimer back to the original two thymines.
Why does UV light affect Escherichia coli?
UV lights are lethal and cause mutation in cell of E.coli during DNA replication which lead to the death of microbes. It enhance the formation of thymine dimer which cause mutation
What is the dimer of RNA?
The opposite sequence, so the two strands can bind together to form a dimer.
What nitrogen base is replaced with uracil in RNA?
Thymine
What base is found DNA but not in RNA?
Thymine
What does photolyases do to thymine diamers?
Photolyases, also known as light-repair enzymes, use visible light energy to separate the dimer back to the original two thymines.
Why does UV light affect Escherichia coli?
UV lights are lethal and cause mutation in cell of E.coli during DNA replication which lead to the death of microbes. It enhance the formation of thymine dimer which cause mutation
When did Julius Dimer die?
Julius Dimer died in 1945.
When was Julius Dimer born?
Julius Dimer was born in 1871.
How many small molecules are joined to form a dimer?
Two monomers are joined to make a dimer.
What is the dimer of RNA?
The opposite sequence, so the two strands can bind together to form a dimer.
What nitrogen base is replaced with uracil in RNA?
Thymine
Which antibody is a dimer?
IgA
What base is found DNA but not in RNA?
Thymine
How many oxygen atom in dimer structure?
The formula of the usual elemental oxygen molecule is O2, showing two atoms per molecule. (This answer is coded in the phrase "dimer structure" itself, because "dimer" means "two units".)
In DNA adenine binds with?
thymine remember. adenine to thymine guanine to cytosine
What base is always paired with thymine?
Thymine
