The type of photosynthesis that does not produce oxygen
A. occurs in algae and plants.
B. occurs in purple and green sulfur bacteria.
C. occurs in cyanobacteria.
D. does not require sunlight.
E. does not require CO2 as a reactant.
Answer: B
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You discover a new sunflower that has blue flowers instead of yellow. When you cross this blue variety with a common yellow variety you get blue and yellow speckled flowers. What type of inheritance pattern does this gene exhibit?
A. incomplete dominance B. codominance C. simple Mendelian inheritance D. either incomplete dominance or codominance E. sex-influenced dominance
In eukaryotic cells, how can a single gene encode for more than one protein?
A. by using different codons B. by transcribing multiple copies of mRNA C. by removing different combinations of introns D. by using transgenes E. by mutating their genes
Researchers searching for treatment for sickle cell anemia and beta thalassemia are attempting to trigger production of which of the following globins?
1.G? only
2.A? only
3.both G? and A?
4.?-globin
5.?-globin
6.both ?-globin and ?-globin
Bile salts are synthesized from
a. hydrochloric acid. b. uric acid. c. cholesterol. d. mucus. e. sodium chloride.