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In a deoxyribonucleotide, what chemical group is found at the 2' carbon of the sugar component?
an amino group
a hydroxyl group
an oxygen
a hydrogen
one or more phosphate groups

Sagot :

marianaegarciaperedo

The sugar group of the deoxyribonucleotide is a ribose. Its carbons are numbered from 1' to 5'. The hydrogen group is found at the 2' carbon of the sugar component. Option D is correct.

Nucleotides

Monomers are composed of a sugar molecule, joined with a phosphate group and a nitrogenated base. The sequence of nucleotides joined by their extremes compose the DNA and RNA.  

Sugar group

DNA sugar group is always a pentose that contains deoxyribose, with hydroxyl modifications.

Carbons in the pentose are numbered from 1' to 5'

  • The phosphate group attaches to the 5' carbon,

  • There is a free -OH in the 3' carbon that forms a 5'–3' phosphodiester linkage with the following nucleotide.

  • The nitrogenated base attaches to the 1' carbon.

  • An hydrogen is attached to the 2' carbon.

In a deoxyribonucleotide an hydrogen group is found at the 2' carbon of the sugar component. Option D is correct.

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