Which of the following are products of photosynthesis?
a. Oxygen and glucose
b. Carbon dioxide and glucose
c. Oxygen and hydrogen
d. Chlorophyll and glucose
a. Oxygen and glucose
Oxygen and glucose are products of photosynthesis.
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What personal characteristics and events in Gregor Mendel's life significantly contributed to his ultimate contribution to the study of inheritance?
A. His training in physics and mathematics at the University of Vienna. B. He failed his physics exam. C. He failed his natural history exam. D. He got his teaching license at the age of 21. E. He got a job as a substitute teacher and enjoyed it.
Which of the following is NOT an accessory
organ of the human digestive system? a. salivary gland b. esophagus c. pancreas d. gallbladder e. liver
In the process of fermentation, what happens to pyruvate that is produced from glycolysis?
a. It enters the mitochondria where it is reduced to lactic acid b. It remains in the cytoplasm and is converted to ethanol in plants c. It enters the Kreb's cycle in the mitochondria d. It loses an electron to NAD+ to form NADH
Since dominant alleles are always expressed and detected, how can the persistence of autosomal-dominant disorders be explained?
A) many individuals with dominant disorders have overcome the challenges they present and have decided to have children B) some dominant alleles are not expressed until after the age when most people have reproduced C) unless the symptoms of the disorder prevent reproduction, the gene may be passed on D) some conditions are continually reintroduced to a population through spontaneous mutation E) all of the choices