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How would the structure of DNA be affected is two pyrimidines were paired with two purines were paired?
Wiki User
∙ 7y ago
It would look like a zig zag because purines are bigger than pyrimidines
Chauncey Kihn
Wiki User
∙ 16y agoThe shape of the DNA, had the base pairing been same would be a bit kinky. The helical structure would remain the same as it depends on the sugar-phosphate backbones. The diameter of the DNA helix would not be uniform. The world have actually been completely in a mutated form and different than what it is.
Wiki User
∙ 15y agoFirst off, this doesn't occur. However, assuming that it did, it wouldn't be the standard double helix one has come to know. There would be bulky spots (from one base pair to many) and thin spots (from one base pair to many).
Wiki User
∙ 10y agoIt would look like a zig zag because purines are bigger than pyrimidines
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Can purines pair with other purines?
No. The physical structure does not allow purines to pair with other purines. Purines can only be paired with Pyrimidines.
How are purines and pyrimidines paired?
Adenine pairs with ThymineCytosine pairs with Guanine
What are the names of pyrimidines?
Cytosine and thymine. one is a double ring sugar while the other is a single ring suagr. They are complemetarily paired with purines.
Why all organism have same ratio of base pair in DNA?
Organisms normally have equal amounts of the bases adenine and thymine (ratio of A:T = 1) and equal amounts of the bases cytosine and guanine (ratio C:G = 1). The reason is that there is specific base pairing ie adenine can only pair with thymine and cytosine can only pair with guanine. So in a DNA double helix, every adenine in one strand must be paired with a thymine in the other strand. Similarly, every cytosine in one strand must be paired with a guanine in the other strand. Each base pair consists of a purine and a pyrimidine. Adenine and guanine are purines and thymine and cytosine are pyrimidines. This relationship between purines and pyrimidines was discovered by Erwin Chargaff in the 1950's. See: http://en.wikipedia.org/wiki/DNA http://en.wikipedia.org/wiki/Chargaff%27s_rules
Thymine and cytosine?
Thymine and cytosine are examples of nucleobases found in DNA. Thymine is paired with adenine, while cytosine is paired with guanine.
Can purines pair with other purines?
No. The physical structure does not allow purines to pair with other purines. Purines can only be paired with Pyrimidines.
How are purines and pyrimidines paired?
Adenine pairs with ThymineCytosine pairs with Guanine
How would the deoxyribose sugar phosphate back bone of nucleotide chains look if purines paired only with purines and pyrimidines paired only with pyrimidines?
Watson thought of that as possible when he was under a misapprehension as to the structure of the nucleotides ( he thought enol when it was keto ). The backbone would be kinked and crooked, not smooth and seamless as it truly is.
What are two bases that are pyrimidines?
Cytosine and thymine. one is a double ring sugar while the other is a single ring suagr. They are complemetarily paired with purines.
What base pairing arrangement is found in double-stranded DNA?
Adenine is paired with thymine.Cytosine is paired with guanine.
What are the names of pyrimidines?
Cytosine and thymine. one is a double ring sugar while the other is a single ring suagr. They are complemetarily paired with purines.
Why all organism have same ratio of base pair in DNA?
Organisms normally have equal amounts of the bases adenine and thymine (ratio of A:T = 1) and equal amounts of the bases cytosine and guanine (ratio C:G = 1). The reason is that there is specific base pairing ie adenine can only pair with thymine and cytosine can only pair with guanine. So in a DNA double helix, every adenine in one strand must be paired with a thymine in the other strand. Similarly, every cytosine in one strand must be paired with a guanine in the other strand. Each base pair consists of a purine and a pyrimidine. Adenine and guanine are purines and thymine and cytosine are pyrimidines. This relationship between purines and pyrimidines was discovered by Erwin Chargaff in the 1950's. See: http://en.wikipedia.org/wiki/DNA http://en.wikipedia.org/wiki/Chargaff%27s_rules
Which reproductive process is correctly paired with the structure in which it occurs?
gonads
Thymine and cytosine?
Thymine and cytosine are examples of nucleobases found in DNA. Thymine is paired with adenine, while cytosine is paired with guanine.
What is a paired structure that appear next to the nucleus during prophase to separate chromosomes?
The centrosomes.
Which reproductive structure is correctly paired with its function?
Ovary - produces eggs and secretes hormones needed for reproduction.
One would expect in the structure of a DNA molecule thymine would always be paired to?
adenine.
