Answer: A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of traits inherited by cellular organelles.
Explanation: Maternal inheritance or inheritance by cellular organelles are phenotypes controlled by organelle genes. Mitochondria are organelles that contain their own DNA and protein-synthesizing apparatus.
There is a widely held theory concerning the origin which proposes that they were once infectious endosymbiotic prokaryotes that evolved such a dependence on the gene product of the host that they are no longer able to function autonomously.
Answer:
Option A, Excessive heat
Explanation:
A denatured protein is the one whose structure changes with the loss of an activity. Generally, a denatured protein unfolds itself when the 2 D network of water around the protein molecule breaks by the breaking of hydrogen bonds. This primarily happens when the temperature is high. Both hydrogen bonds and hydrophobic interactions are disturbed by the heat thereby breaking hydrogen bonds.
The octet rule maintains that all molecules must have a full outer shell, and it wants to give that one electron away, because it'd be easier than gaining seven more. So, it'd be B :)
Answer:
Answer: I don't know .....