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The sides of the DNA double helix ladder is composed of alternating phosphate groups and deoxyribose sugars.

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Describe The structure of the double helix?

The structure of a DOUBLE HELIX is called the sugar phosphate backbone and gives the double helix its crisscrossing spiral appearance and it also has the job of holding everything together on the double helix, [Ex.: The sugar phosphate backbone is like the sides of a ladder, its what the bars in the middle of the ladder are attached to, (Bars= HYDROGEN BONDS) and without the sides of the ladder (without the sugar phosphate backbone) the middle bars can't make up the ladder (just like hydrogen bonds can't make up a double helix without something supporting it, not including the other parts of a double helix such as the nitrogenous bases, the nucleotides, the phosphate, and the sugar KNOWN AS DEOXYRIBOSE FOUND ONLY IN A DOUBLE HELIX.)]A single helix sugar is different from a double helix sugar, a single helix sugar is called ribose and a double helix sugar is called deoxyribose.


What do the circles between the sugar on both sides of the DNA ladder represent?

The circles between the sugar molecules represent the nitrogenous bases that make up the rungs of the DNA ladder. These bases form complementary pairs (adenine with thymine, cytosine with guanine) to maintain the double helix structure of DNA.


What four molecules make up the rungs of the ladder?

The four molecules that make up the rungs of the DNA ladder are adenine, thymine, guanine, and cytosine. Adenine pairs with thymine, and guanine pairs with cytosine through hydrogen bonding to form the base pairs of the double helix structure.


Did James Watson make the double helix?

Watson and Crick were the first to figure out the shape of DNA, which turns out to be a double helix. They did not make it, they observed it.


Double helix definition?

the double helix refers to the SHAPE OF A DNA MOLECULE!!! It isn't that hard of a connection to make.


How do you make a double helix model?

One way might be to get a flexible ladder and then turn both ends in opposite directions on its axis, in other words twist it. The result should be quite similar to a DNA double helix. You can use beads: http://www.instructables.com/id/The_Double_Helix_Glass_Bead_DNA_model/


What two chemicals make up the rungs of the DNA ladder?

The two chemicals that make up the rungs of the DNA ladder are adenine (A) paired with thymine (T), and guanine (G) paired with cytosine (C). These base pairs connect the two strands of the DNA double helix together.


What are the sides of the DNA ladder composed of?

The sides of the DNA ladder is composed of sugar and phosphate. 4 bases that make up the rungs of the DNA ladder are A, T, G, and C. The shape of the DNA is a double helix or twisted ladder.


What are the smaller molcecules that make up nucleic acid called?

The backbone of a nucleic acid is made up of alternating sugar and phosphate molecules bonded together to these are attached the molecule making the rungs of the double helix ladder the Nucleotides.


What discovery did Watson and Crick make about the structure of DNA?

They discovered the double helix.


What molecules come together to make a DNA molecule?

Nucleotides which formed double helix.


What are sides of a double helix made of?

The sides of a double helix are made of repeating units of sugar and phosphate molecules, which make up the backbone of the DNA molecule. These sugar-phosphate backbones are connected by hydrogen bonds between the nitrogenous bases, forming the characteristic twisting structure of the DNA double helix.