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When purine base only pairs with a pyrimidine?
This is a basic principle of DNA base pairing called Chargaff's rule. Adenine (purine) pairs with thymine (pyrimidine), while guanine (purine) pairs with cytosine (pyrimidine). This complementary base pairing is essential for the double-stranded structure of DNA.
Purine nucleotides mainly differ from pyrimidine nucleotides in their number of?
Purine nucleotides differ from pyrimidine nucleotides in their structure due to the number of nitrogen-containing rings they have. Purine nucleotides have a double-ring structure, while pyrimidine nucleotides have a single-ring structure.
What is transversion mutation?
A transversion mutation is a type of point mutation where a purine base is substituted for a pyrimidine, or vice versa. This type of mutation results in a change in the base pair from a double-ring structure to a single-ring structure, potentially causing changes in the amino acid sequence during protein synthesis.
When a purine base only pairs with a pyrimidine what is it called?
When a purine base pairs with a pyrimidine, it forms a complementary base pair. This pairing is important in the structure of DNA molecules, where adenine pairs with thymine and guanine pairs with cytosine through hydrogen bonding, creating the double helix structure of DNA.
Does Complementary base pairing always pairs a purine with a pyrimidine?
Yes, complementary base pairing in DNA always pairs a purine (adenine or guanine) with a pyrimidine (thymine or cytosine). This specific pairing allows for the formation of hydrogen bonds between the bases, ensuring stability in the DNA double helix structure.
Pyrimidine base found in DNA and RNA?
Cytosine is the pyrimidine that bonds to the purine Guanine in both DNA and Rna.
Is a pyrimidine base?
Yes, uracil is a derivative of a pyrimidine. It is also useful to note that uracil is a naturally occurring derivative.
What are the DNA pyrimidines?
Thymine and cytosine are the pyrimidine bases of DNA. Uracil is the pyrimidine base which replaces thymine in RNA.
The pyrimidine base found in DNA but not Rna?
Thymine.
Where a purine base only pairs with a pyrimidine?
nitrogen
What are a purine and a pyrimidine that are capable of hydrogen bonding to form the rung structure of DNA called?
Adenine (purine) can hydrogen bond with thymine (pyrimidine), and guanine (purine) can hydrogen bond with cytosine (pyrimidine) to form the rungs of the DNA double helix structure.
What DNA bases are the pyrimidines?
Thymine and cytosine are the pyrimidine bases of DNA. Uracil is the pyrimidine base which replaces thymine in RNA.
