#Question id: 2662
#SCPH05 I Biotechnology
In the tryptophan operon, tryptophan serves as ________________.
#Question id: 1709
#SCPH01 Biochemistry
What are the specialized cell type involved in the entry of lymphocytes into lymph nodes called?
#Question id: 5017
#SCPH06 I Botany
Arrange these events from earliest to most recent.
1. emission of lava in what is now Siberia at time of Permian extinctions
2. emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust
3. emission of lava that solidified at the same time as rusted iron precipitated from seawater
4. emission of lava in what is now India at time of Cretaceous extinctions
#Question id: 764
#SCPH01 Biochemistry
Which of the following is NOT correct about tRNA?
#Question id: 19768
#SCPH05 I Biotechnology