What are the differences between 16s rRNA and 16s rDNA?

Question

Accepted Answer

Basis of differentiation

16s RNA

16s rDNA

Definition

Is a component of the small (30s) subunit of the prokaryotic ribosome

Encodes the 16s rRNA in prokaryotes

Number of strands

Single-stranded

Double-stranded

Composition

Composed of RNA molecules

Composed of DNA molecules

Presence of thymine bases

Are not present

Are present

Presence of uracil bases

Are present

Are not present

Mechanism

Binds to the Shine-Dalgarno sequence on mRNA to be translated

Carries out transcription to generate its gene product (16s rDNA)

Function

Assist the large and small ribosomal subunits come together by interacting with the 23S rRNA subunits

Identify prokaryotes

Basis of differentiation	16s RNA	16s rDNA
Definition	Is a component of the small (30s) subunit of the prokaryotic ribosome	Encodes the 16s rRNA in prokaryotes
Number of strands	Single-stranded	Double-stranded
Composition	Composed of RNA molecules	Composed of DNA molecules
Presence of thymine bases	Are not present	Are present
Presence of uracil bases	Are present	Are not present
Mechanism	Binds to the Shine-Dalgarno sequence on mRNA to be translated	Carries out transcription to generate its gene product (16s rDNA)
Function	Assist the large and small ribosomal subunits come together by interacting with the 23S rRNA subunits	Identify prokaryotes