#Question id: 18913
#Unit 13. Methods in Biology
#Question id: 11809
#Unit 6. System Physiology – Plant
Shortly after the discovery of kinetin, it was observed that
the differentiation of cultured callus tissue derived from tobacco pith
segments into either roots or shoots depends on the ratio of auxin to cytokinin
in the culture medium. Whereas
a) high auxin:cytokinin ratios stimulated the formation of
roots
b) high auxin:cytokinin ratios stimulated the formation of
shoots
c) low auxin:cytokinin ratios led to the formation of shoots
d) low auxin:cytokinin ratios stimulated the formation of
roots
which of the following combination is correct about the ratio of auxin to cytokinin
#Question id: 18938
#Unit 13. Methods in Biology
#Question id: 11148
#Unit 7. System Physiology – Animal
Which of the following ions is most likely to cross the plasma membrane of a resting neuron?
#Question id: 5677
#Unit 5. Developmental Biology
During acrosome reaction, after binding with the egg many sperm membrane proteins are activated. Which of the following membrane protein is not activated?