A deoxyribose sugar that has lost both of its oxygen at the 2' & 3' positions is called a….
A) Nucleoside
B) Nucleotide
C) Dideoxynucleotide
D) Deoxynucleotide
E) dNTP

Question

Quizplus · Accepted Answer

A deoxyribose sugar that has lost both of its oxygen at the 2' & 3' positions is called a dideoxynucleotide. This is because it lacks the hydroxyl group (-OH) present at those positions in regular nucleotides, which are essential for forming phosphodiester bonds during DNA synthesis. Dideoxynucleotides are often used in DNA sequencing reactions because they terminate DNA chain elongation, resulting in different-sized fragments that can be separated and analyzed.

A Deoxyribose Sugar That Has Lost Both of Its Oxygen