#Question id: 10563
#XL - R Botany
The rate of diffusion depend upon
#Question id: 20042
#XL - P Chemistry
#Question id: 3255
#XL - T Zoology
The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?
#Question id: 10390
#XL - R Botany
#Question id: 361
#XL - Q Biochemistry
Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.