#Question id: 7051
#Unit 5. Developmental Biology
Which of the following is not maternal dorsalizing factors in amphibia?
#Question id: 72
#Unit 1. Molecules and their Interaction Relevant to Biology
For the reaction catalyzed by the enzyme hexokinase: Glucose + ATP → glucose 6-phosphate + ADP the equilibrium constant, Keq, is 7.8 × 102. In living E. coli cells, [ATP] = 5 mM, [ADP] = 0.5 mM, [glucose] = 2 mM, and [glucose 6-phosphate] = 1 mM. Which of the following conclusions made on the basis of the above calculations is incorrect?
#Question id: 30074
#Unit 2. Cellular Organization
#Question id: 636
#Unit 1. Molecules and their Interaction Relevant to Biology
DNA polymerase contains a lysine residue that is important for binding to DNA. Mutations were found that converted this lysine to either glutamate, glycine, valine, or arginine. Which mutations would be predicted to be the most and least harmful to the ability of the enzyme to bind DNA?
Most |
Least |
|
(A) |
Valine |
Aspartate |
(B) |
Glycine |
Arginine |
(C) |
Arginine |
Glycine |
(D) |
Glutamate |
Arginine |
#Question id: 24550
#Unit 9. Diversity of Life Forms
Only four possible states of a particular site in a DNA sequence, which of the following statement is correct?