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What is the Purine base that always pairs with the cytosine?
guanine
A purine base that pairs with cytosine?
Adenine is the purine base that pairs with cytosine through hydrogen bonding in DNA. This base pairing is a key component of the complementary nature of DNA strands.
What base will always pair with another base?
A purine will always pair with a pyrimidine. Examples of purines are adenine (pairs with thymine or uracil) and guanine (pairs with cytosine). Examples of pyrimidines are thymine (pairs with adenine), uracil (pairs with adenine), and cytosine (pairs with guanine).
What base does cytosine base-pair with?
Cytosine, a pyrimidine (sugar) base, pairs with Guanine, a purine (nitrogen) base.
What are the DNA base pairing rules?
Adenine always pairs with thymine Cytosine always pairs with guanine.
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.
How does the diameter of DNA stay constant?
Adenine and Guanine are the purines and Cytosine and Thymine are the pyrimidines. Base pairng rules mean that Adenine always pairs with Thymine and Guanine always pairs with Cytosine. Thus each base pair is always a purine with a pyrimidine and hence they always have the same size -2nm.
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.
What are the complimentary base paring?
The rules for base parings in DNA and RNA, are rather simple purines pair with pyrimidines; adenine pairs with thymine and guanine pairs with cytosine In all cases, purines pair with pyrimidines Specifically in DNA, adenine (a purine) pairs with thymine (a pyrimidine) and Guanine (a purine) pairs with cytosine (a pyrimidine) While in RNA, the same simple rules apply, the only difference being uracil replaces thymine adenine (a purine) pairs with uracil (a pyrimidine) and Guanine (a purine pairs with cytosine (a pyrimidine)
Which nitrogeneous base always pairs with guanine?
Cytosine.
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.
On dna what base will always pair with what base?
Adenine always pairs with thymine in a DNAmolecule.
