#Question id: 361
#Unit 1. Molecules and their Interaction Relevant to Biology
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.
#Question id: 5464
#Unit 8. Inheritance Biology
Two varieties of maize averaging AABBCC (200 inch) and aabbcc (80 inch) in height, respectively, are crossed. The F1 progeny is quite uniform averaging 140 inches in height allowed to self fertilization. If height is control by 3 pair of polygene, what is the height of following genotype of F2 plant?
I- AaBBCC II- aaBbCC III- aabbCc
#Question id: 10128
#Unit 6. System Physiology – Plant
PSII also involve in
oxidation of water molecules, water is a very stable molecule that’s why Oxidation of water to form molecular oxygen
is very difficult, Many studies have provided a substantial amount of
information about the process known;
which of the following are false ?
#Question id: 12379
#Unit 7. System Physiology – Animal
#Question id: 10952
#Unit 7. System Physiology – Animal
Which of the following blood units carries the least risks for inducing an immediate transfusion reaction into a B+ (B, rhesus positive) recipient?