0
Why Guanine and cytosine have triple bond in between and Adenine and Thymine have double bond in between?
Wiki User
∙ 12y ago
Actually no one knows why it is just Erwin Chargaff's rule of defining DNA.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
How are the bases paired within the DNA double helix -?
G to C A to T Guanine pairs with cytosine, and adenine with thymine, due to the hydrogen bonding in two locations between adenine and thymine, and three in guanine and cytosine.
Which nuclotide pair bonds would be found in an DNA molecule?
The two different nucleotide pair bonds found in DNA are guanine-cytosine and adenine-thymine.
What are cytosine guanine thymine and adenine?
Cytosine thymine guanine and adenine are the nitrogenous bases found in the nucleotides that form DNA.DNA is made up of 3 parts:(1)Phosphate group(2)Deoxyribose(3)Nitrogen containing base.Complimentary pairing/ bonding through weak hydrogen bonds occurs between Cytosine and Guanine(first pair) and Adenine and Thymine. Are the four bases in DNA. They make the base pairs of adenine->thymine Guanin -> cytosine and visa/versa. In RNA thymine is replaced with uracil
What bonds Adenine and Thymine together?
The Watson-Crick base pair of Thymine is Adenine. The two molecules are bound together by a set of three hydrogen bonds. Thymine can also form what are known as Thymine dimers when exposed to UV radiation, which is the source of damage to DNA from overexposure to UV radiation and can cause cancer.
What the correct base pairing in DNA?
Adenine, Thymine, Cytosine, GuanineA base pairs with TC base pairs with G
How are the bases paired within the DNA double helix -?
G to C A to T Guanine pairs with cytosine, and adenine with thymine, due to the hydrogen bonding in two locations between adenine and thymine, and three in guanine and cytosine.
Which nuclotide pair bonds would be found in an DNA molecule?
The two different nucleotide pair bonds found in DNA are guanine-cytosine and adenine-thymine.
How is the hydrogen bond formed between purine and pyrimidine?
In the case of adenine bonding to thymine, the NH group of the thymine bonds with the N of the adenine, and the double-bonded oxygen on the thymine bonds with the NH2 group on the adenine. (thymine)N - H - N(adenine) and (thymine)=O - H - NH(adenine) In the case of guanine bonding to cytosine, the double-bonded O group of the cytosine bonds with the NH2 of the guanine, the N on the cytosine bonds with the NH group on the guanine, finally, the NH2 on the cytosine bonds with the double-bonded O on the guanine. (cytosine)=O - H - NH(guanine) and (cytosine)N - H - N(guanine) finally (cytosine)NH - H - O=(guanine) In summary, there are two H bonds between an adenine and a thymine. There are three H bonds between a cytosine and guanine.
True or false The strands of a DNA molecule are held together by hydrogen bonding between adenine with guanine molecules and cytosine with thymine molecules?
False. Adenine pairs with thymine and guanine pairs with cytosine.
Difference between RNA and DNA base pairing?
There is no thymine in RNA, there is uracil instead. So in DNA the base pairs are adenine - thymine and cytosine-guanine, and in RNA adenine-uracil and cytosine-guanine.
Explain how chargaff's helped watson and crick model dna?
Chargaff discovered that in DNA the percentages of adenine and thymine were the same, and the percentages of cytosine and guanine are the same. This led to the idea of base-pairing between adenine and thymine, and cytosine and guanine.
What are cytosine guanine thymine and adenine?
Cytosine thymine guanine and adenine are the nitrogenous bases found in the nucleotides that form DNA.DNA is made up of 3 parts:(1)Phosphate group(2)Deoxyribose(3)Nitrogen containing base.Complimentary pairing/ bonding through weak hydrogen bonds occurs between Cytosine and Guanine(first pair) and Adenine and Thymine. Are the four bases in DNA. They make the base pairs of adenine->thymine Guanin -> cytosine and visa/versa. In RNA thymine is replaced with uracil
Is is true that hydrogen bonds can only form between adenine and cytosine?
No. Hydrogen bonds form between water molecules, adenine and thymine, adenine and uracil, guanine and cytosine, and a myriad of other molecules.
What bonds Adenine and Thymine together?
The Watson-Crick base pair of Thymine is Adenine. The two molecules are bound together by a set of three hydrogen bonds. Thymine can also form what are known as Thymine dimers when exposed to UV radiation, which is the source of damage to DNA from overexposure to UV radiation and can cause cancer.
What is meant by the base pairing?
Principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
How do the 4 bases of DNA pair?
The four different nucleotides have different strucutres: Adenine and Guanine have 2 ring structures. However, Cytosine and Thymine have singular ring structures. This means that Adenine cannot pair with Guanine as the two ring structures will be bigger than the singular ringed structure and the two strands of DNA are equidistant the entire length. Adenine and Thymine both have the ability to form 2 hydrogen bonds, whereas Cytosine and Guanine form 3 hydrogen bonds. Therefore Adenine and Thymine bond together, Cytosine and Guanine bond together. These hydrogen bonds between four different types of nucleotides (due to 4 different nitrogenous bases) hold together the two strands of DNA to form a double strand of DNA.
What is meant by the term base-pairing?
Principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
