"Efficiency" of a respiration pathway refers to the
a. number of steps in the pathway.
b. amount of CO2 produced relative to the amount of carbohydrate entering the pathway.
c. amount of H2O produced relative
to the amount of carbohydrate entering the pathway.
d. amount of ATP energy produced relative to the energy content of the carbohydrate entering the pathway.
d
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The sequence of the messenger RNA molecule (primary transcript) synthesized from a DNA molecule with a coding strand having the sequence 5' ATGCTACCGTTA is:
A. 5' UACGAUGGCAAU. B. 5' UAACGGUAGCAU. C. 5' AUGCUACCGUUA. D. 5' AUUGCCAUCGUA. E. None of the choices given is correct.
In comparing the development of the unwebbed foot of the chicken and webbed foot of a duck, what differences are there in the expression of BMP4 and gremlin?
A. Chicken feet only express BMP4 while duck feet only express gremlin. B. BMP4 is expressed similarly in both chicken and duck feet, while gremlin is only expressed in duck feet. C. Gremlin is expressed similarly in both chicken and duck feet, while BMP4 is only expressed in between chicken toes. D. Both BMP4 and gremlin are expressed similarly in chicken and duck feet. E. BMP4 is expressed similarly in both chicken and duck feet, while gremlin is not expressed between the toes of chicken feet.
The main pollinators of flowers that have markings visible only under ultraviolet light are
A. birds. B. bees. C. beetles. D. flies. E. bats and moths.
Several lines of evidence, including fossils and a genetic analysis of different groups of modern humans, suggest that our species originated and spread out from:
A) east Africa. B) central Europe. C) India. D) north Africa.