#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).
#Question id: 11076
#I Life Science/ Life Sciences Group – I-V
Which of the following will decrease pulmonary blood flow resistance?
#Question id: 15277
#SCPH28 | Zoology
#Question id: 11082
#SCPH28 | Zoology
A 67-year-old man has a solid tumor that pushes
against an airway partially obstructing air flow to the distal alveoli. Which
point on the ventilation-perfusion line of the O2-CO2 diagram corresponds to
the alveolar gas of these distal alveoli?
#Question id: 3298
#SCPH28 | Zoology
Which of the following is incorrect statement?