A mutation of what type of sequence is predicted to have the greatest effect on the rate of transcription?
A) enhancer
B) core promoter
C) silencer
D) proximal-promoter element
E) termination sequence
Answer: B
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Secondary endosymbiosis can occur when a
A) nonphotosynthetic protist engulfs a photosynthetic bacterium. B) virus infects a photosynthetic prokaryote. C) protist evolves to become a prokaryote. D) nonphotosynthetic protist engulfs a photosynthetic protist. E) green alga engulfs a photosynthetic bacterium.
Why might mitochondrial DNA be used in construction of phylogenetic trees rather than nuclear DNA?
What will be an ideal response?
The ________ is the total volume of air contained in the lungs after the deepest possible inhalation and the lungs are totally filled
Fill in the blank(s) with correct word
Component of the cytoskeleton; plays a role in the movement of the cell and its organelles; a protein filament in a sarcomere of a muscle, its movement shortens the sarcomere, yielding muscle contraction.
What will be an ideal response?