If a bacterial culture growing on an agar plate was exposed to UV light at a wavelength of 254 nm for 10 minutes, and then a bacterial smear was made of the culture, would you expect to see bacterial cells on the slide?
A) No, the cells will have fragmented.
B) Yes, the cells will still be present but UV light will have damaged the DNA.
B) Yes, the cells will still be present but UV light will have damaged the DNA.
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After reaching the inner ear, the frequency of a sound primarily affects
A. the amplitude of basilar membrane vibration. B. the location of the greatest basilar membrane vibration. C. the vibrational amplitude of the tectorial membrane.
Microtubules grow from a barrel-shaped organelle called the ____, which remains below the finished array as a ____
a. cilium; motor protein b. cell cortex; centriole c. microfilament; basal body d. centriole; intermediate filament e. centriole; basal body
Define Ockham’s razor and provide an example. What will be an ideal response?
Identify four external features of a woody twig and briefly explain the function and/or origin of each. What will be an ideal response?