NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A three base sequence on mRNA is called a(n)
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codon.
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exon.
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anticodon.
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intron.
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Explanation:
Detailed explanation-1: -Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble-in order-the chain of amino acids that form a protein.
Detailed explanation-2: -The mRNA bases are grouped into sets of three, called codons. Each codon has a complementary set of bases, called an anticodon.
Detailed explanation-3: -In RNA, these bases are often labeled with the letters A, U, C, and G. A set of three bases makes up a codon. The messenger RNA contains many such codons, with a series of three bases followed by three more bases, and then three more bases, and so on.
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