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

DNA has deoxyribose sugar as opposed to ribose sugar found in RNA because the lack of oxygen atom at the 2' position of the sugar molecule provides more stability to the DNA molecule by reducing susceptibility to hydrolysis. This makes DNA more suitable for long-term storage and encoding genetic information.

Answer 4

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 5

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 6

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 7

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

Deoxyribose.

Answer 8

Yes. The pentose sugar in DNA is the deoxyribose.

Answer 9

because the sugar have one oxygen less