Why does DNA have deoxyribose sugar?

Answer 1

There are two answers:

Ribose makes sugar phosphate backbone reactive. Thus, branching could occur since both the 2 prime and 3 prime positions can be involved in phosphodiester bonds.

Deoxyribose makes DNA much more stable at high pH, RNA is alkaline (unstable).

Answer 2

The difference in the structure of the DNA and RNA is quite literally a single oxygen atom, missing from the deoxyribose. However, this is all the difference it needs, as it prevents RNA from forming the double-helix structure the DNA is known for.

Answer 3

Deoxyribose is another term for the sugar used in the backbone of the DNA molecule. A nucleic acid is a macromolecule. It means its composed of chains of monomeric nucleotides.

Answer 4

It has 5 carbon atoms therefore is called a 'pen'tose. Same thing with glucose - that has 6 carbons and so is called a 'hex'ose sugar.

Answer 5

Deoxyribose is a modified ribose molecule that has had one of its oxygen atoms replaced with hydrogen, leaving it with one less oxygen atom.

Answer 6

The sugar is a deoxyribose because it is a Ribose sugar, but it is missing oxygen. Hence, Deoxy, meaning, without oxygen, ribose.

Deoxyribose.

Answer 7

Yes. The pentose sugar in DNA is the deoxyribose.

Answer 8

because the sugar have one oxygen less