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Multiple Choice
Which type of RNA contains groups of 3 nucleotides that code of a specific amino acid?
A
tRNA.
B
rRNA.
C
mtDNA.
D
mRNA.
Verified step by step guidance
1
Understand the role of mRNA in protein synthesis: mRNA, or messenger RNA, carries the genetic information from DNA to the ribosome, where proteins are synthesized.
Recognize the structure of mRNA: mRNA is composed of sequences of nucleotides, which are the building blocks of RNA.
Identify the concept of codons: In mRNA, groups of three nucleotides form a codon, each of which specifies a particular amino acid during protein synthesis.
Differentiate between types of RNA: tRNA (transfer RNA) brings amino acids to the ribosome, rRNA (ribosomal RNA) is a component of ribosomes, and mtDNA (mitochondrial DNA) is not RNA but DNA found in mitochondria.
Conclude that mRNA is the type of RNA that contains codons, which are groups of three nucleotides coding for specific amino acids.