Answer:
The duplication of a cluster of four Hox genes is equally likely as the duplication of a single Hox gene.
Explanation:
This comes from the definition of the parsimony principle, which is the action of choosing the simplest scientific explanation fitting the given evidence, meaning that all other elements are equal when evaluating the hypothesis. In biology the best hypothesis is the one that requires the fewest evolutionary changes.
Since three independent duplications of an individual Hox gene is in evolutionary terms, more complex than a single duplication or a cluster, then that hypothesis would be the most parsimonious.
The external structures of the prokaryotic cell include a plasma membrane, cell wall, and capsule (or slime layer).
Males have gular pouches, which they inflate during mating season.
Molecules that have the same chemical formula but have different molecular structures are: Isomers.
Water is a polar molecule because its opposite ends have opposite electric charges.
