Using 14CO2 as a radioactive tracer, which molecule would be the last to incorporate 14C within the Calvin cycle?
A. 3-phosphoglycerate (3PG)
B. rubisco
C. ribulose biphosphate (RuBP)
D. 1,3-biphosphoglycerate (1,3-BPG)
E. glyceraldehyde-3-phosphate (G3P)
C. ribulose biphosphate (RuBP)
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Which statement is true? a. Environmental factors can affect gene expression, which will always affect the genotype
b. Environmental factors can affect gene expression, which will affect the phenotype. c. Environmental factors never affect gene expression, which will never affect the phenotype. d. None of these choices. e. Environmental factors can affect gene expression, which will never affect the genotype.
The periodic table of the elements was devised by
a. Henri Becquerel. b. Demitri Mendeleev. c. Melvin Calvin. d. Marie Curie. e. Becquerel and Mendeleev.
Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth
Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it? A) How can amino acids, simple sugars, and nucleotides be synthesized abiotically? B) How did RNA sequences come to carry the code for amino acid sequences? C) How could polymers involving lipids and/or proteins form membranes in aqueous environments? D) How can RNA molecules act as templates for the synthesis of complementary RNA molecules?
In a very small population of birds, assume 5 out of 20 alleles are the type that codes for blue feathers. What is the allele frequency of the "blue feather allele" in this population?
A) 0.50 B) 0.20 C) 5 D) 0.40 E) 0.25