There is/are __________ transcriptional start site found in the lac operon. There is/are ________ translational starts found in the lac operon
Fill in the blank(s) with the appropriate word(s).
Ans: 1; 3
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Which of the following is an interaction that stabilizes the three-dimensional structure of DNA?
A. planar nature of bases due to resonance B. tautomerism of the bases C. absorbance of UV light D. hydrophobic stacking E. repulsion between the negatively charged phosphate groups of the DNA backbone
Which of the following could be considered an oligotrophic (growing at low nutrient levels) environment inhabited by alpha-proteobacteria?
A. Anaerobic environment B. Growth in food items C. Symbiotic growth D. Remote marine environments
A difference between a chicken’s foot and a duck’s foot is the presence or absence of webbing – a duck’s foot has webbing between the digits, while a chicken’s foot lacks the webbing. Which of the cell processes that play a role in producing tissues/organs is NOT happening to a great extent during development of a duck’s foot?
A. cell division B. cell growth C. differentiation D. apoptosis E. cell connections
The cAMP-CAP complex and RNA polymerase bind more efficiently to the lac operon together than either does alone. What term is applied to this increased efficiency of binding?
What will be an ideal response?