Which molecule provides the energy that the cell requires for protein translation?
a. GTP
b. TTP
c. ATP
d. ADP
Ans: a. GTP
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The vesicles that initiate formation of a cell plate in plant cells are formed from plasma membrane and ________
a. rough endoplasmic reticulum b. smooth endoplasmic reticulum c. Golgi body d. lysosomes
Which aspect of population genetics can lead to changes in allele frequencies in a new mixed population following migration?
A) natural selection B) mutation C) gene flow D) founder effect E) bottleneck effect
Opportunistic species
A. are good dispersers and colonizers of new habitats. B. are slow to mature. C. have long life spans. D. are composed of large individual organisms. E. are adapted to stable environments.
During gas exchange, oxygen and carbon dioxide always move:
A) into the blood. B) out of the blood. C) into the alveoli. D) down their concentration gradients.