An sRNA is isolated from a bacterial cell. What would you do to determine whether it is a cis-encoded or a trans-encoded sequence?
A. Analyze the molecular position of hydrogen atoms in the sRNA nucleotides.
B. Determine whether the sRNA binds to mRNA or to tRNA.
C. Identify whether or not the sRNA sequence is complementary to the coding strand of mRNA gene target.
D. Find out if the sRNA acts as a transcriptional or as a translational inhibitor.
Answer: C
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How many types of histone proteins are there?
A. 4 B. 5 C. 7 D. 8
The main advantage of YAC (yeast artificial chromosome) over other vectors in cloning human genes
is that A. it is taken up more readily by recipient cells. B. it is larger. C. it is less likely to trigger rejection. D. it is made of human DNA. E. it has unique restriction sites.
The cross GE/ge × ge/ge produces the following progeny: GE/ge 404, ge/ge 396, gE/ge 97, Ge/ge 103. From these data, one can conclude that the recombinant progeny are gE/ge and Ge/ge
Indicate whether the statement is true or false
Antimicrobial peptides (AMPs) frequently work by
A) inhibiting protein synthesis. B) disrupting the plasma membrane. C) complementary base pairing with DNA. D) inhibiting cell-wall synthesis. E) hydrolyzing peptidoglycan.