Which of the following would be the best approach to allow a biologist studying the evolution of four similar species of birds to choose the correct phylogenetic tree from all possible phylogenetic hypotheses?
a. Constructing the tree that connects the species using the fewest number of branches
b. Comparing the entire genomes of the species and arranging species within the phylogeny based on genome similarity
c. Determining which species can interbreed and concluding that those that can evolved from a common ancestor most recently
d. Choosing the tree that has the most evolutionary changes, as this would be the most likely scenario to produce four distinct species
e. Constructing phylogenetic trees consistent with DNA sequence comparisons among the species and then choosing the tree that involves the fewest number of evolutionary changes from a common ancestor to the current species
Answer: e. Constructing phylogenetic trees consistent with DNA sequence comparisons among the species and then choosing the tree that involves the fewest number of evolutionary changes from a common ancestor to the current species
You might also like to view...
Spina bifida occurs due to a defect in the development stage
A. prior to cleavage. B. prior to neurulation. C. prior to fertilization. D. after gastrulation. E. after organogenesis.
In order for a cell to become cancerous, oncogenes must be , or tumor suppressors are .
A. inactivated; inactivated B. activated; inactivated C. activated; activated D. inactivated; activated E. suppressed; inactivated
The original source of new alleles is
a. crossing over. b. independent assortment. c. fertilization. d. mutation. e. more than one of these.
An organism's environment consists of __________.
Fill in the blank(s) with the appropriate word(s).