11. A \"codon\" is a. A regulatory stretch of amino acids in a protein b. c. d.
ID: 67979 • Letter: 1
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11. A "codon" is a. A regulatory stretch of amino acids in a protein b. c. d. e. A secret message sent from Sidious to Dooku. A set of three-nucleotide words in tRNA A set of three-nucleotide words in DNA A set of three-nucleotide words in mRNA 12. Imaginary situation: You identify a mutated rainbow- colored algae cell, that no longer can make the color purple. Mutant L only shows purple in its rainbow if given violechrome. Mutant M shows purple if given violechrome, rhodochrome, or azurin. Mutant N shows purple if given violechrome or azurin. What is the order of enzyme activity in the purple pigment synthesis pathway? a. Enzyme L enzyme M-> enzyme N. b. Enzyme N enzyme M enzyme L. c. Enzyme M enzyme L enzyme N. d, Enzyme N enzyme L enzyme M. e. Enzyme M enzyme N enzyme L. 18 13. Which of the following genetic mutations can change a single mRNA sequence, CAU (encoding histidine), to UAU (encoding tyrosine)? a. Silent b. Missense c. Nonsense d. Frameshift e. Past-tense!??Explanation / Answer
11) a A specific sequence of three consecutive nucleotides that is part of the genetic code and that specifies a particular amino acid in a protein or starts or stops protein synthesis -- called also triplet. A codon is a trinucleotide sequence of DNA or RNA that corresponds to a specific amino acid.
12. c.Enzyme M - enzyme L - enzyme N.
13. D. Framshifit
14. a. NO effect
15. c. DNA ligase; hairppin loop; release factor
16. 5
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