Imagine you conduct a parabiosis experiment with two strains of mice, one of which lacks a functional leptin gene (ob strain) while the other lacks a functional receptor for this hormone (db strain). Which of the following outcomes would you observe?
A. no weight change in the ob mouse
B. no weight change in the db mouse
C. increased body weight in the ob mouse
D. decreased body weight in the ob mouse
E. decreased body weight in the db mouse
D. decreased body weight in the ob mouse
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A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last Universal Common Ancestor would show Archaea
A. branching off the Domain Eukarya. B. branching off the Domain Bacteria. C. as the original cells from which the others derived.
Which of the following is transmitted by mosquitoes?
A. plague B. yellow fever C. malaria D. tularemia E. yellow fever AND malaria
Muscle cells are stimulated by acetylcholine released from the terminals of
A. transverse tubules. B. motor neuron axons. C. sensory cell axons. D. motor neuron dendrites. E. sensory cell dendrites.
The cycle of viral infection in which the viral DNA is integrated into the host's DNA is called the ________ cycle.
A. lysogenic B. lysol C. lytic D. lysozyme E. lysosome