You have identified a mutation in a gene that also seems to decrease transcription of another gene 2000 bp away from the mutation site. What regulatory sequence, which may be found within another gene, has likely been mutated in this instance?
A) core promoter
B) proximal elements
C) enhancer sequence
D) homeodomain motif
E) upstream activator sequence
C
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The attraction between Na+ cations and Cl- anions form ____ that hold the ions together in the compound NaCl
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
The trait of connected earlobes is considered a
a. beneficial trait. b. harmful trait. c. neutral trait. d. dominant trait. e. significant trait.
How do insulin and glucagon interact to maintain normal blood sugar levels?
What will be an ideal response?
Which of the following processes requires a carrier protein?
A. exocytosis only B. facilitated diffusion only C. active transport only D. endocytosis only E. both facilitated diffusion and active transport