An mRNA sequence is 5?-AUG GGC ACU CAU ACU UAA-3?, where AUG is the start codon and UAA is the stop codon. How many distinct aminoacyl-tRNA synthetases are required to translate the mRNA sequence?
A. 2
B. 3
C. 4
D. 5
E. 6
C. 4
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Which of the following events is least likely a result of protein phosphorylation?
A. reduction in the activity of an enzyme B. transport of the protein to the nucleus C. the specific binding of a regulatory protein D. targeting of the protein for degradation
Multicellular organisms likely arose around ____ million years ago
a. 900
b. 600 c. 300 d. 100 e. 10
In cultivated stocks, the cross of a variety of white flower plants produced all red flowers in the F1
generation, but the F2 generation produced 87 red, 31 cream, and 39 white. Explain these results by giving the genotypes possible for each phenotype. What will be an ideal response?
How many ATP are used to start glycolysis for glucose?
What will be an ideal response?