#Question id: 19103
#Unit 6. System Physiology – Plant
#Question id: 32295
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 11947
#Unit 7. System Physiology – Animal
Why is milk produced only after delivery, not before?
#Question id: 5371
#Unit 8. Inheritance Biology
The trait represented in the following pedigree (shaded symbols) is known to be inherited as a single dominant gene. Calculate the probability of the trait appearing in the offspring if the first cousins should marry and have children.
#Question id: 10160
#Unit 6. System Physiology – Plant
Which of the following statements about the C4 cycle is true ?
a.) C4 plants uses the enzyme phosphoenolpyruvate carboxylase (PEPCase), rather than rubisco
b.) Unlike rubisco, O2 does not compete with HCO3 − in the carboxylation catalyzed by PEPCase
c.) initial carboxylation catalyzes in bundle sheath cells, four-carbon acids formed and flow across the diffusion barrier to the mesophyll cells
d.) during decarboxylation, releasing CO2 that is refixed by rubisco via the Calvin–Benson cycle