#Question id: 945
#SCPH05 I Biotechnology
A key precursor in the synthesis of aromatic amino acids (tryptophan, tyrosine and phenylalanine) is ________.
#Question id: 306
#I Life Science/ Life Sciences Group – I-V
The force responsible for dissolution of ionic compound in water is_________
#Question id: 14832
#SCPH05 I Biotechnology
#Question id: 2613
#SCPH01 Biochemistry
If increasing the number of trp codon,
#Question id: 53
#SCPH28 | Zoology
Calculate the number of times the DNA of a modern E. coli cell has been copied accurately since its earliest bacterial precursor cell arose about 3.5 billion years ago. Assume for simplicity that over this time period, E. coli has undergone, on average, one cell division every 12 hours (this is an overestimate for modern bacteria, but probably an underestimate for ancient bacteria).