A __________ ____________ is a protein that influences the ability of RNA polymerase to transcribe a given gene.

Fill in the blank(s) with the appropriate word(s).


Ans: transcription factor

Biology & Microbiology

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The preferred habitat of S. aureus is the

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The variable region of a light chain is indicated by ____

a. A b. B c. C d. D e. E

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Parenting behavior is rare once the eggs have

hatched or birth has occurred in a. birds. b. amphibians. c. mammals. d. reptiles. e. amphibians and reptiles.

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Which free-living cells were the earliest contributors to the formation of Earth's oxidizing atmosphere?

a) chloroplasts b) mitochondria c) endosymbionts d) seaweeds e) cyanobacteria

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