#Question id: 18960
#Unit 13. Methods in Biology
#Question id: 7255
#Unit 5. Developmental Biology
The
hypostome acted as an “organizer” of the hydra. This notion has been confirmed
by:
A.
when transplanted, the hypostome can induce host tissue to form a second body
axis.
B.
the hypostome do not produces the head inhibition signal.
C.
the hypostome is the only “self-differentiating” region of the hydra.
D.
the hypostome produces a “head activation signal” that suppresses the formation
of new organizing centers.
Which one of the following combinations are incorrect?
#Question id: 3786
#Unit 3. Fundamental Processes
E. coli cells grown on 15N medium are transferred to 14N medium and allowed to grow for two more generations (two rounds of DNA replication). DNA extracted from these cells is centrifuged. What density distribution of DNA would you expect in this experiment?
#Question id: 11903
#Unit 7. System Physiology – Animal
If a patient has a creatinine clearance of 90 ml/min, a urine flow rate of 1 ml/min, a plasma K+ concentration of 4 mEq/L, and a urine K+ concentration of 60 mEq/L, what is the approximate rate of K+ excretion?
#Question id: 5379
#General Aptitude
The average weight of three brothers is 68 kg . If their weights are in the ratio 3:4:5, the weight of the heaviest of the three brothers is.