Which section in involved in negative control? In which section would you find p

Question

Which section in involved in negative control? In which section would you find positive control? In which section or sections would you find a stop codon? You are studying a regulatory region for a eukaryotic gene and discover a region of CG di-nucleotides near the promoter that have been methylated. What do you conclude about this gene? The tryptophan operon is A mutation occurs in the leader sequence of the tryptophan operon. Both of the tryptophan codons are deleted. What would the consequences of this mutation be? Triploidy in humans would be an example of In the presence of the repressor molecule and abundant tryptophan, the tryptophan operon is Enchancers are cis-acting and transcription factors are trans-acting An examination of Drosophila polytene chromosomes reveals a loop in one of the chromosomes. What have you detected?

Explanation / Answer

19. b

20. e

21. e

22. b

23. e

24. a

25. b

26. c

27. a

28. b

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