#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: 5767
#Unit 8. Inheritance Biology
An enzyme that repairs thymine dimers in visible light in E. coli
#Question id: 19475
#Unit 12. Applied Biology
#Question id: 26478
#Unit 2. Cellular Organization
How many operators in Lac operon system
#Question id: 4882
#Unit 8. Inheritance Biology
In Drosophila melanogaster, cinnabar eye (cn)and vestigial wing (vg) are simple recessive traits.a A male pure line wild type eye ,vestigial wing cross with female pure line cinnabar eye, wild type wing . F1female, heterozygous for both genes, was crossed with a male with cinnabar eyes and vestigial wings. The offspring resulting from this cross are listed in below class
I Wild type
II Cinnabar eye, wild-type wing
III Wild-type eye, vestigial wing
IV Cinnabar eye, vestigial wing
Above class are recombinant progeny