Which of the following is NOT true of small effector molecules?
A. They can cause a conformational change in a regulatory protein.
B. They can prevent a repressor from binding a gene region.
C. They can regulate gene transcription by binding to DNA.
D. They can regulate gene transcription by binding a regulatory protein.
C. They can regulate gene transcription by binding to DNA.
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As part of observation in your scientific method, you discover that your strawberry plants are producing plantlets that are identical to the parent plant. This demonstrates that they reproduce by
A. development and maturation. B. fragmentation. C. development and adaptation. D. sexual reproduction. E. asexual reproduction.
Which of the following pairs is mismatched?
A) spirochete — axial filament B) aerobic, helical bacteria — gram-negative C) enterics — gram-negative D) mycobacteria — acid-fast E) Pseudomonas — gram-positive
Which of the following organisms has a pattern of gastrulation that is the most similar to humans?
a. amphibians b. birds c. drosophila d. sea urchin e. zebra fish
Which of the following is TRUE regarding plasmids?
A. Plasmids are small, usually a few thousand to ten thousand base pairs. B. Plasmids are linear. C. Plasmids are contained within the bacterial chromosome. D. Plasmids are rarely found in prokaryotes. E. Plasmids dominate in eukaryotes.