#Question id: 1691
#Unit 4. Cell Communication and Cell Signaling
What is the structure recognized by the αβ T-cell receptor on the cell surface of an antigen-presenting cell?
#Question id: 7248
#Unit 5. Developmental Biology
Planning of the Xenopus mesoderm along the dorso-ventral axis contains an antagonistic relationship between chordin and bmp-4. Is there an analogy here to dorso-ventral patterning in the Drosophila embryo?
#Question id: 10800
#Unit 6. System Physiology – Plant
Which of the following secondary metabolites causes infertility in the
#Question id: 4839
#Unit 8. Inheritance Biology
In Drosophila males there is complete linkage. What is the reason behind this?
#Question id: 169
#Unit 1. Molecules and their Interaction Relevant to Biology
An octapeptide composed of four repeating glycylalanyl units has: