#Question id: 945
#Unit 1. Molecules and their Interaction Relevant to Biology
A key precursor in the synthesis of aromatic amino acids (tryptophan, tyrosine and phenylalanine) is ________.
#Question id: 1392
#Unit 4. Cell Communication and Cell Signaling
In the nematode C. elegans, ced-9 prevents apoptosis in a normal cell in which of the following ways?
#Question id: 5537
#Unit 5. Developmental Biology
The segmented blocks of tissue that develop on each side of the notochord are called the
#Question id: 8842
#Unit 9. Diversity of Life Forms
In terms of the hierarchical organization of life, a bacterium is at the __________ level of organization, whereas a human is at the __________ level of organization
#Question id: 418
#Unit 1. Molecules and their Interaction Relevant to Biology
Biological oxidation-reduction reactions always involve: