Endospores will appear _____ then the vegetative cell.
a. bigger
b. smaller
c. the same size
b. smaller
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Chlorophylls absorb most light in which colors of the visible range?
A) green and blue B) blue and red C) green and red D) violet and red
The fluid portion of the blood is called
a. plasma. b. formed elements. c. interstitial. d. extracellular matrix. e. exocrine.
You have identified a protein that you hypothesize is a sigma factor in E. coli that has not yet been characterized. You have purified the protein. What types of experiments could you perform to investigate whether or not the protein is a sigma factor?
What will be an ideal response?
Two cells that contain similar steroid receptors may nevertheless respond differently to the steroid if they:
A) contain different DNA strands B) make different steroid receptor cofactors C) have been exocised D) lack lipid nuclei