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Guanine to Cytosine in DNA Via a triple hydrogen bond for example NH2 donor group bonds to the =O acceptor group on G? Similarly, the two donor groups on G (NH and NH2) match the acceptor groups on C

The NH2 at the top of A would clash with the NH2 on C. You can't form an H-bond with two donor groups and no acceptor. Those two groups would actually get in each other's way, forcing the helix to distort. Also, A has no H-bond donors in the middle or at the bottom. So A and C can't pair.

T and C have a different problem. The top and middle groups of T could potentially h-bond with the complementary groups on C. But the helix would hold T and C too far apart. (The connection between each base and the backbone is the wavy line.) H-bonds can't form if the groups are to far apart from each other.

So this is why G and C have to be pared together

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Cytosine pairs with Guanine

Adenine Pairs with Thymine

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Guanine

Adenine pairs with Thymine

Cytosine pairs with Guanine

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Guanine

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Guanidine.

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Q: What base matches up with cytosine in DNA?
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How do DNA bases match up?

Adenine (A) always matches up with thymine (T) and cytosine (C) always matches up with guanine (G).


Which rna base pairs with which DNA strand?

There are four nucleotide bases that pair up to form the "ladder rungs" that we see on a DNA molecule. These are adenine, thymine, guanine, and cytosine. Adenine matches with thymine, and guanine matches with cytosine. The opposite of each case also occurs (thymine will bind to adenine, and cytosine to guanine).


How is DNA made up in base pairs?

DNA is made up of two strands. Each strand has one of four bases on it. These are adenine, thymine, guanine and cytosine. On the other strand will be a matching pair. Adenine will match up with thymine and guanine will match up with cytosine. To make it easier, we just say A matches with T and G matches with C. On RNA "T" or thymine is replaced by uracil "U". In this case everything remains the same except now U matches up with A.


How many bases make up a DNA?

4 nitrogenous bases make up a DNA. Cytosine,Guanine ,Thymine,& Adenine T goes with A C goes with G they are base pairs.


The unit of a DNA molecule which is made up of a nitrogen carrying base a sugar molecule and a phosphate group is called a what?

DNA and RNA are nucleic acids. When broken to the smallest unit it is called a nucleotide. The nucleotide of both DNA and RNA is up of a sugar molecule which is attached to a phosphate group and a base. The bases of DNA are thymine, adenine, guanine, and cytosine. In RNA adenine is replace with uracil while it keeps thymine, guanine, and cytosine. In DNA adenine pairs with thymine, and cytosine pairs with guanine. In RNA uracil pairs with thymine, and cytosine pairs with guanine.

Related questions

What base does adenine pair up with in the DNA?

Thymine, and Cytosine matches with Guanine


What are the fifteen proteins in DNA?

Adanene, Cytosine, Thymene and Guanine. Adanene matches up with Thymene Cytosine matches up with Guanine.


How do DNA bases match up?

Adenine (A) always matches up with thymine (T) and cytosine (C) always matches up with guanine (G).


DNA Which base pair up together?

Guanine-Cytosine and Adenine-Thymine


Which rna base pairs with which DNA strand?

There are four nucleotide bases that pair up to form the "ladder rungs" that we see on a DNA molecule. These are adenine, thymine, guanine, and cytosine. Adenine matches with thymine, and guanine matches with cytosine. The opposite of each case also occurs (thymine will bind to adenine, and cytosine to guanine).


What base does guanine pair whit?

Guanine pairs up with cytosine in both DNA and RNA while adenine pairs up with thymine in DNA only.


How is DNA made up in base pairs?

DNA is made up of two strands. Each strand has one of four bases on it. These are adenine, thymine, guanine and cytosine. On the other strand will be a matching pair. Adenine will match up with thymine and guanine will match up with cytosine. To make it easier, we just say A matches with T and G matches with C. On RNA "T" or thymine is replaced by uracil "U". In this case everything remains the same except now U matches up with A.


How many bases make up a DNA?

4 nitrogenous bases make up a DNA. Cytosine,Guanine ,Thymine,& Adenine T goes with A C goes with G they are base pairs.


The unit of a DNA molecule which is made up of a nitrogen carrying base a sugar molecule and a phosphate group is called a what?

DNA and RNA are nucleic acids. When broken to the smallest unit it is called a nucleotide. The nucleotide of both DNA and RNA is up of a sugar molecule which is attached to a phosphate group and a base. The bases of DNA are thymine, adenine, guanine, and cytosine. In RNA adenine is replace with uracil while it keeps thymine, guanine, and cytosine. In DNA adenine pairs with thymine, and cytosine pairs with guanine. In RNA uracil pairs with thymine, and cytosine pairs with guanine.


What are the 4 base pairs of DNA and which bases do they pair up with?

Adenine Guanine Cytosine Thymine This is how i remember it Apples - Teachers Cops- Guns Adenine - Thymine Cytosine - Guanine


What base pairing occurs between DNA and rna?

List the nitrogen bases in dna?what happens to chromosomes during the stage of the cell cycle in which the nucleus divides.include the terms prophase, metaphase,anaphase and telophase.one section of a strand of DNA has the base sequence on the other strand?


What is the uses of cytosine?

cytosine pairs with guanine to help make up DNA.