The results obtained when the linker was cloned between -50 and -100 indicate that
A. this region is not critical for transcription but can enhance transcription
B. the assay failed
C. when cloned in this region the linkers had a transacting effect
D. the results of the assay were variable and this is just due to random variation in the assay
Bloom's Level:
A
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The wild-type pUC19 plasmid (blue plasmid) contains genes for
(a) antibiotic resistance. (b) activation of ?-galactosidase production. (c) both a and b. (d) none of these choices.
Color blindness is an X-linked recessive gene. Two
normal-vision parents produce a color-blind child. (a) Is this child male or female? (b) What are the genotypes of the parents? (c) What are the chances that their next child will be a color-blind daughter? What will be an ideal response?
The above photomicrograph is of
a. mycelium. b. protistans. c. mycorrhizae. d. stolons. e. rhizoids.
Amphibians were the dominant animal life during the ________ period.
A. Devonian B. Jurassic C. Silurian D. Carboniferous E. Cambrian