During the attenuation of the trp operon, which stem loop leads to polycistronic mRNA synthesis during tryptophan starvation?
A) 1-3 (antitermination) stem loop
B) 3-4 (termination) stem loop
C) 1-2 (pause) stem loop
D) 2-3 (antitermination) stem loop
E) 2-4 (termination) stem loop
D
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The different proteins characteristic of breast cancer subtypes can be used as _____ for proper diagnosis and
treatment.
a. prebiotics b. biomarkers c. DNA clones d. bioinformatic data e. physical maps
Many viruses are helped along in generating antibody-evading capsid protein variations by replication error
Indicate whether the statement is true or false
Molecular analysis of lactase DNA __________ in humans shows that genes for that enzyme have __________ evolved in Africa and Europe to produce the same result.
Fill in the blank(s) with the appropriate word(s).
The following steps occur during bacteriophage replication. What is the second step?
a. Penetration b. Biosynthesis c. Attachment d. Lysis