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

TLS Online TPP Program

#Question id: 5526

#Unit 5. Developmental Biology

The allantois

TLS Online TPP Program

#Question id: 5527

#Unit 5. Developmental Biology

Ectoderm cells related with anterior neural crest cells condense and form

TLS Online TPP Program

#Question id: 5528

#Unit 5. Developmental Biology

The lining of the uterus in which the mammalian embryo implantationsTakes place called as

TLS Online TPP Program

#Question id: 5529

#Unit 5. Developmental Biology

In humans, organogenesis in the embryo is basically accomplished by the end of which period of the pregnancy?

TLS Online TPP Program

#Question id: 5530

#Unit 5. Developmental Biology

 The cavity inside the blastula is called the

TLS Online TPP Program

#Question id: 5531

#Unit 5. Developmental Biology

The trophoblast forms to the