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Use the drop-down menus to label the parts of a
nucleotide.
Label A
Label B
Label C
Label D
Label E
Label F.

Use the dropdown menus to label the parts of a nucleotide Label A Label B Label C Label D Label E Label F class=

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annyksl

Answer:

A and F are phosphate groups.

B and E are sugars.

C and D are nitrogenous bases.

Explanation:

Nucleotides are the molecules responsible for composing DNA and RNA. They are formed by three units: a phosphate group, a sugar molecule and a nitrogenous base.

The sugar molecule is a pentose, which means that it is a molecule formed by 5 carbons. These collections are represented by geometrical figures such as the letters "B" and "E" shown in the figure above, where each tip represents a carbon.

The nitrogenous bases are molecules that are named adenine (A) and guanine (G) and the pyrimidine bases cytosine (C), uracil (U) and thymine (T).

The phosphate group, in turn, is a molecule derived from phosphoric acid and is the only one that does not vary in each nucleotide.

luisvaschetto

Labels A and F correspond to phosphate groups, label B corresponds to a deoxyribose sugar, label E corresponds to a ribose sugar, and labels C and D correspond to nitrogenous bases.

  • DNA is a double-stranded molecule composed of two long opposite chains of nucleotides, while RNA consists of only one long chain of nucleotides.

  • A nucleotide is a molecule composed of a pentose sugar (ribose in RNA and deoxyribose in DNA), a nitrogenous base, and a phosphate group.

  • In DNA, there are four types of nucleotides that contain four different classes of nitrogen bases: Adenine, Guanine, Cytosine and Thymine.

  • In RNA, Thymine bases are replaced by Uracil bases.

In conclusion, labels A and F correspond to phosphate groups, label B corresponds to a deoxyribose sugar, label E corresponds to a ribose sugar, and labels C and D correspond to nitrogenous bases.

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