#Question id: 28213
#Unit 5. Developmental Biology
Specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observation is correct at the high concentration of activin?
#Question id: 138
#Unit 1. Molecules and their Interaction Relevant to Biology
A protein that contains more isoleucine, phenylalanine and leucine than asparagine, lysine and arginine is most likely
#Question id: 26571
#Unit 3. Fundamental Processes
Which of the following is required to initiate modifications of histone H3 (deacetylation of K9 and K14, followed by methylation of K9) in human
#Question id: 11100
#Unit 7. System Physiology – Animal
Which circumstance would increase ventilation frequency in humans?
#Question id: 32235
#Unit 1. Molecules and their Interaction Relevant to Biology