Thursday, January 31, 2008

Pairing

They do the nitrogen bases pair up like they do? What is the reason behind it?

13 comments:

Silly Willy said...

Thymine and cytosine are called pyrimidines because they are singled ringed nitrogenous bases. Adenine and guanine are purines because they are double ringed nitrogenous bases. In DNA adenine is always equal to the thymine. Guanine is always equal to the amount of cytosine. The phosphate groups and deoxybiose molecules form the back bone of the chain and the nitrgenous bases stick out like the teeth of a zipper.

Kendall said...

First of all, Adenine and Guanine are both purines that are double ringed bases. This makes them pair together, and Thymine and Cytosine are both pyrimidines and are single ringed bases which makes them pair together. Each of these nitrogenous bases is always equal to the one that it is pairing up with.

chris said...

Adenine binds to thyamine and guanine bind to cytosine. Thymine and cytosine are pyrimidines because they are single ringed. Adenine and guanine are purines becuase they are double ringed. The nitrogenous bases fit together like the teeth of a zipper.

Tristen said...

There are two different types of bases, one is called pyrimidines and the other are purines. The purine bases are Adenine and Guanine since they are double ringed bases. The pyrimidine bases are Thymine and Cytosine, they have a single ringed base. They have a certain order they have to make DNA, for instances adenine is always equal to thymine, and guanine is always equal to cytosine. These make up the pairing bases of DNA.

Bierman said...

First of all, Adenine and Guanine are both purines that are double ringed bases. This makes them pair together, and Thymine and Cytosine are both pyrimidines and are single ringed bases which makes them pair together. Each of these nitrogenous bases is always equal to the one that it is pairing up with.

Gil said...

the nitrogen bases pair up because they need more than one to do everything.and they have to fit together.

matt said...

Adenine and Guanine are purines because they are double ringed nitrogenous bases. Thymine and cytosine are called pyrimides because they are single ringed nitrogeneous bases. Guanine and Cytosine are always equal because they pair together and Adenine and thymine are always equal because they pair with each other. The phosphate groups and deoxybiose molecules form the backbone of the chain and the nitrogeneous bases stick out like the teeth of a zipper.

bean said...

sytosine and thymine both are pyrimidines. they are single ringed nitrogenous bases. everything is always equal.

SMAX said...

First of all, Adenine and Guanine are both purines that are double ringed bases. This makes them pair together, and Thymine and Cytosine are both pyrimidines and are single ringed bases which makes them pair together. Each of these nitrogenous bases is always equal to the one that it is pairing up with.

Tiffany said...

Each nitrogenous base is equal to the one it is pairing up with either in purines or pyrimidines. therefore Adenine + Guanine, and Thymine + Cytosine.

Matt G said...

Thymine and cytosine are called pyrimidines. They need to de in the pair so they cen de a dadole helikes. It cen kep it in order.

Kayla said...

Adenine and Guanine are purines because they are double ringed nitrogenous bases. Thymine and cytosine are called pyrimides because they are single ringed nitrogeneous bases. Guanine and Cytosine are always equal because they pair together and Adenine and thymine are always equal because they pair with each other.

chelsea said...

Adenine and Guaine are both purines that are double ringed bases. This means they are double ringed bases and they pair together. Thymine and Cytosine are pyrimidines and are single ringed bases so these pair together.