Multiple Choice
In genetics, what is an organism's phenotype?
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1. Introduction to Genetics
Fundamentals of Genetics
Multiple Choice
In the context of fundamentals of genetics, what is a segment of DNA that encodes a functional product (such as a protein or functional RNA) called?
A
A nucleotide
B
A codon
C
A chromosome
D
A gene
Verified step by step guidance1
Understand the basic units of genetic information: DNA is composed of nucleotides, which are the building blocks, but a single nucleotide does not encode a functional product.
Recognize that a codon is a sequence of three nucleotides that specifies a particular amino acid during protein synthesis, but it is not the entire segment encoding a functional product.
Know that a chromosome is a large structure made of DNA and proteins that contains many genes, but it is not a single segment encoding one functional product.
Identify that a gene is a specific segment of DNA that contains the instructions to produce a functional product, such as a protein or functional RNA.
Therefore, the correct term for a DNA segment encoding a functional product is a gene.
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