Match antibiotics with their effects

A. Tetracycline	1. Inhibits aminoacyl-tRNA binding to A-site in prokaryotes
B. Chloramphenicol	2. Blocks correct positioning of A-site aminoacyl-tRNA for peptidyl transfer reaction in prokaryotes
C. Fusidic acid	3. Prevents release of EF-G–GDP from the ribosome in prokaryotes
D. Ricin	4. Prevents activation of translation factor GTPases in both Prokaryotes and Eukaryotes

#Question id: 15987

#Unit 12. Applied Biology

#Question id: 21248

#Unit 7. System Physiology – Animal

#Question id: 7235

#Unit 5. Developmental Biology

Following statements are regarding to the wingless gene in drosophila.

A. In the cells transcribing the wingless gene, wingless mRNA is translocated by its 3’UTR to the apex of the cell. At the apex, the wingless message is translated and secreted from the cell.

B. The cells expressing engrailed can bind this protein because they contain Patched, which is the Drosophila membrane receptor protein for Wingless.

C. Binding of Wingless to Frizzled activates the hedgehog signal transduction pathway, resulting in the continued expression of engrailed.

D. Wingless protein also acts in an autocrine fashion, maintaining its own expression.

Which of the following combinations is correct?

#Question id: 3476

#Unit 11. Evolution and Behavior

The genetic relatedness (r) of an individual to brother is 0.50, according to Hamilton’s Rule, only if the fitness benefit is

#Question id: 2391

#Unit 2. Cellular Organization

Which organelle is the primary site of ATP synthesis in eukaryotic cells?