#Question id: 10134
#Unit 6. System Physiology – Plant
Some herbicides such as dichlorophenyldimethylurea (DCMU, also known as diuron) and paraquat, block photosynthetic electron flow from where ?
a.) DCMU blocks electron flow at the quinone acceptors of PSII, by competing for the binding site of plastoquinone that is normally occupied by PQB
b.) Paraquat accepts electrons from the early acceptors of PSI and then reacts with oxygen to form superoxide, O2 – , a species that is very damaging to chloroplast components
c.) DCMU blocks electron flow at the pheophytin acceptors of PSII, by competing for the binding site of pheophytin
d.) Paraquat accepts electrons from the Iron-sulfur system of PSI and then reacts with oxygen to form superoxide, O2 – , a species that is very damaging to chloroplast components
Which of the following combination is true?
#Question id: 7705
#Unit 9. Diversity of Life Forms
Based on this tree, which statement is
correct?
#Question id: 27548
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 5215
#Unit 11. Evolution and Behavior
What is it about short tandem repeat DNA that makes it useful for DNA fingerprinting?
#Question id: 26459
#Unit 3. Fundamental Processes