#Question id: 9621
#Unit 9. Diversity of Life Forms
If this evolutionary tree is an accurate
depiction of relatedness, then which of the following should be correct?
1. The entire tree is based on maximum
parsimony.
2. If all species depicted here make up a
taxon, this taxon is monophyletic.
3. The last common ancestor of species B
and C occurred more recently than the last common ancestor of species D and E.
4. Species A is the direct ancestor of both
species B and species C.
5. The species present at position 3 is ancestral to C, D, and E
#Question id: 9622
#Unit 9. Diversity of Life Forms
Which of the following numbers represents a polyphyletic taxon?
#Question id: 10127
#Unit 6. System Physiology – Plant
In higher plants, the multi-subunit protein supercomplex has two complete reaction centers and some antenna complexes. The core of the reaction center consists of two membrane proteins known as D1 and D2, Which contained a multi-subunit protein supercomplexes;
#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: 10129
#Unit 6. System Physiology – Plant
Oxidation of water to form molecular oxygen is very difficult: The photosynthetic oxygen-evolving complex is the only known biochemical system that carries out this reaction which essential cofactor are involved in the water-oxidizing process?
#Question id: 10130
#Unit 6. System Physiology – Plant
manganese (Mn) is an essential cofactor in the water-oxidizing process, and a classic hypothesis in photosynthesis research postulates that Mn ions undergo a series of oxidations—known as S states, This hypothesis has received strong support from a variety of experiments, which of the following techniques detect the manganese ions directly and Analytical experiments indicate that how much Mn ions are associated with each oxygen-evolving complex?