If the sequence on the DNA molecule calls for a protein with the following DNA codons:
a. what would be the sequence on the mRNA?
b. what would be the sequence on the tRNA?
C. what would be the amino acid sequence of the protein being made?
DNA
ТАСТТА CAA ACCATA
ATT
mRNA (codon)
AUG
AAU_
_GUU_
UGG_
UAU_
UAA__
RNA (anticodon)
Amino acids:
46. What would be the effect if one of the bases were deleted in the very first mRNA codon?
no start codon no
translation

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?