Why is it important to compare DNA sequences in the construction of an evolutionary tree?
a. Similarities in physical appearance cannot be used to construct and evolutionary tree.
b. Convergent evolution can cause distantly related organisms to appear closely related. DNA sequence analysis can show that they are actually distantly related.
c. DNA sequence comparison is not required; homologous features alone are sufficient in evolutionary tree construction.
d. RNA sequences are actually more important in constructing an evolutionary tree since they are the precursors to DNA.
e. None of the above
Ans: b. Convergent evolution can cause distantly related organisms to appear closely related. DNA sequence analysis can show that they are actually distantly related.
You might also like to view...
Plasmodesmata are cell-cell junctions that are found between _____
A) individual cardiac cells in heart muscle tissue B) adjacent plant cells C) adjacent animal cells in the same tissue type D) the plasma membrane of actively dividing prokaryotes
If 0.04% (0.0004) of the people in a population has sickle cell anemia, the percent of heterozygotes in the population must be _____________________ percent
Fill in the blank(s) with correct word
Slime molds are classified as
a. animals. b. fungi. c. plants. d. protists.
What limits the frequency of action potentials?
A. chloride ions B. spike amplitude C. nodes of Ranvier D. refractory period