________ are permanent alterations in a cell's DNA that affect the nucleotide sequence of one or more genes

A) Translations
B) Transcriptions
C) Gene activations
D) Mutations
E) Metastases


Answer: D

Anatomy & Physiology

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Indicate whether the statement is true or false

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A) epididymides. B) seminal vesicles. C) ductus deferentia. D) ejaculatory ducts.

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The study of the structural features and functions of the cell is

A. cytology. B. histology. C. molecular biology. D. microbiology. E. surface anatomy.

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In a pivot joint, the rounded or pointed surface of one bone articulates with a ring formed partly by another bone and partly by a ligament

a. true b. false

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