#Question id: 732
#Unit 1. Molecules and their Interaction Relevant to Biology
Ramachandran plots can help increase the accuracy of models derived from x-ray crystallography data. The plot below was created by measuring phi, and psi for each amino acid residue in a 2.2 A resolution crystal structure. In the plot, which excludes Gly and Pro residues, selected residues (dots) are numbered 1 through 5.
Which of the following statements can be correctly stated for this plot in reference to selected residues?
A. Residues 1 and 3 are in either B sheets
B. residue 2 is in a right-handed a helix, and residue 4 is in a left-handed a helix.
C. If residue 5 were Gly, it might be in an acceptable position in the plot
#Question id: 28561
#Unit 5. Developmental Biology
Which of the following gene is responsible for the synthesis of cAMP?
#Question id: 31148
#Unit 2. Cellular Organization
#Question id: 27412
#Unit 1. Molecules and their Interaction Relevant to Biology
Choose the correct
1. Mutation in B-galactosidase leads to the deposition of GM1 causes Generalized gangliosidosis
2. Mutation in hexosaminidase leads to the deposition of GM2 causes Tay-Sachs
3. Mutation in glucocerebrosidase leads to the deposition of Glc causes Gaucher disease
4. Mutation in sphingomyelinase leads to the deposition of Phosphocholine causes Niemann-Pick disease
#Question id: 3013
#Unit 2. Cellular Organization
Bacteria survive adverse conditions by forming