The Nucleotides in the Backbone of DNA Are Held Together

question 23

Multiple Choice

The nucleotides in the backbone of DNA are held together by

• A)hydrogen bonds.
• B)ionic bonds.
• C)phosphodiester linkages.
• D)peptide bonds.
• E)glycosidic bonds.

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Definitions:

Actin

Spherical protein that plays a role in cell movements; the main component of thin filaments in a sarcomere.

Vesicle

Saclike, membrane-enclosed organelle; different kinds store, transport, or break down their contents.

Fusion

The process of combining two or more entities into a single entity, often referring to the merging of atomic nuclei to form a heavier nucleus, releasing energy.

Cell Cortex

Reinforcing mesh of cytoskeletal elements under a plasma membrane.