Which of the following is not part of a nucleotide?

a. An amino acid

b. A nitrogenous base

c. One or more phosphate groups

d. A sugar

Video transcript

Hey, everyone. Let's take a look at this question together. Deoxyribose in DNA and ribose in RN A are considered. What is it? Answer choice A, a phosphate group. Answer choice B A sugar. Answer choice C A nitrogenous base or answer choice D A protein. Let's work this problem out together to try to figure out which of the following answer. Choices best describes what deoxyribose is in DNA and ribose in RN A. So in order to solve this question, we have to recall what role deoxyribose has in DNA and what role ribose has in RN A. And we know that deoxyribose ribose are the sugars that are found in DNA and RN A respectively. And deoxyribose and ribose are connected by phosphate groups to form the backbone and they are the sugars that attach to the nitrogenous base in DNA and RN A. Therefore, deoxyribose in DNA and ribose in RN A are considered sugars. So answer choice B sugar is the correct answer and all other answer choices are incorrect. I hope you found this video to be helpful. Thank you and goodbye.