If DNA can be described as the instruction book for building an organism, which phrase best describes a gene?
A. A single letter in the instruction book
B. A three-letter word in the instruction book
C. A sentence in the instruction book
D. The paper the instruction book is written on

Option C) A sentence in the instruction book

Explanation:

A gene is a specific portion on the DNA that code for a functional protein. i.e DNA consists of several genes, and some non-coding sequences that are usually spliced off during post-translational modification.

In other words, a gene can be best described as each single, meaningful sentence in the instruction book for building an organism.

no i don't feel that humans have oversubscribed some medications

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.