19. There are A. 20 B. 30 C. 64 D. 61 codons s to coda for the 20 possible amino

Question

19. There are A. 20 B. 30 C. 64 D. 61 codons s to coda for the 20 possible amino acids 20. The genetic oode has more than one codon for some amino acids. This is an example of C. redundancy D. translation placement of the amino acid during translation is determined by the D. secondary structure of the newly forming protein. 22. A stop codon A. codes for the stop amino acid s-methyl-methionine B. forms a hairpin loop forcing the ribosome to fa ll of C. codes for no amino acid enhances the binding of the e-polymerase E. codes for the stop arnino acid s-methyl-methionine AND forms a hairpin loop forcing the ribosome to fall off. 23. "Junk DNA A. are also called introns B. may have regulatory roles. C. have no known function D. are also called exons AND have no known function. E. are also called introns AND may have regulatory roles 24. Gene regulation may entail A turning on genes only when needed. B. turning off genes when not needed C. turning on or off entire groups of genes. D. All of the choices are correct. 25. Synthesis of the genes of the lac operon requires A. presence of lactose B. lactose bound to repressor D. all of the above 26, If the mRNA sequence is UAU CCU UCU UCG CUA, what amino acids would be incorporated into the protein? A. Serine-Threonine-Proline-Phenyalanine-Stop B. Tyrosine-Proline-Serine-Serine-Leucine C. Tyrosine-Alanine-Serine-Leucine-Serine D. Serine-Proline-Tyrosine-Serine-Leucine 27. A sterile item is free of A. microbes B. endospores. C. viruses. D. prions E. microbes, endospores AND viruses

Explanation / Answer

please ask questions separtely and not all together

19 D 61

20A evolution. The degeneracy of codons is an evolutionary change

21B complementarity of codon anticodon

22c codes for no amino acid. stop codons are also called non sense codons because they do not code for any amino acid

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.