#Question id: 1601
#I Life Science/ Life Sciences Group – I-V
Cytotoxin T cells express
#Question id: 572
#SCPH05 I Biotechnology
Which of the following has not been shown to play a role in determining the specificity of protein kinases?
#Question id: 3890
#SCPH06 I Botany
Small signal molecules that regulate transcription are not known to:
#Question id: 11603
#I Life Science/ Life Sciences Group – I-V
Several important role promotes GA in the plant except____
#Question id: 53
#I Life Science/ Life Sciences Group – I-V
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).