Question
A segment of DNA coding for a polypeptide is termed as(a) Intron(b) Exon(c) Cistron(d) Distron
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A polypeptide is a chain of amino acids, and the order of these amino acids in the chain is determined by the sequence of nucleotides in the DNA. Show more…
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23. A section of DNA that regulates the synthesis of one or more proteins is called A. an operon B. a codon C. an exon D. a gene
Introns a. are coded in the DNA. b. are added to the RNA after transcription is complete. c. are removed from RNA before it leaves the nucleus. d. Both a and c
Genes and How They Work
Eukaryotic Genes May Contain Noncoding Sequences
Most eukaryotic genes contain one or more segments that are transcribed but not translated. Each such segment is known as a. a start codon. b. a promoter. c. an intron. d. an exon.
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