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TLS Online TPP Program
#Question id: 5543
#Unit 5. Developmental Biology
What is the purpose of the chorion in terrestrial vertebrate embryos?
TLS Online TPP Program
#Question id: 32393
#Unit 2. Cellular Organization
In sarcomere, the actin filament plus ends are anchored in the:
TLS Online TPP Program
#Question id: 164
#Unit 1. Molecules and their Interaction Relevant to Biology
The uncommon amino acid selenocysteine has an R group with the structure —CH2—SeH (pKa = 5). In an aqueous solution, pH = 7.0, selenocysteine would:
TLS Online TPP Program
#Question id: 5817
#Unit 8. Inheritance Biology
Why is alkyltransferase only able to be used once?
TLS Online TPP Program
#Question id: 28309
#Unit 5. Developmental Biology
Which of the following chemotactic factor is secreted by oocyte and its cumulus cells that involve to attract capacitated sperm toward the egg during the last stages of sperm migration?