Lipid enclosed collections of molecules formed the first ________
a. cells
b. bacteria
c. mitochondria
d. fungi
e. protocells
e
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Which set of codons terminate transcription in most organisms?
A. ACT, TAC, ATT B. AGU, UAG, UAA C. TGA, TAG, TAA D. UGA, UAG, UAA
If your mother and father are both heterozygous for Huntington's disease, which is caused by a dominant allele, the
odds of you having the disorder are ____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. 0
Humans become infected with Fasciola by
A. ingesting cysts on vegetation. B. consuming cysticerci in contaminated meat. C. ingesting water contaminated with eggs. D. the penetration of cercariae through the skin. E. the bite of infected mosquitoes.
How do zoonotic diseases emerge?
a. The infectious agent is not propagated in an animal. b. The environment is not suitable for the propagation and transfer of the agent. c. A new susceptible host species is present. d. All of the above are correct.