Multiple Choice
Scientists may compare similar genes in different species and determine what percentage of base pairs is identical.From this,it can be estimated how long ago the two species shared a common ancestor.The validity of this conclusion depends on an important assumption.This assumption is that:
A) mutations occur at a fairly constant rate in all evolutionary lines.
B) all living things use the same genetic code.
C) the gene codes for a functional protein.
D) both species belong to the same kingdom.
Correct Answer:
Verified
Correct Answer:
Verified
Q36: Who is the co-discoverer of the principle
Q37: Before Darwin,most scientists believed that species of
Q38: Animals use auricular muscles to swivel their
Q39: The human embryo goes through a period
Q40: Scientists have been able to date objects
Q42: Who is credited with first providing conclusive
Q43: The scientist in Darwin's time who championed
Q44: John Endler's experiment with guppies demonstrates which
Q45: In Charles Lyell's Principles of Geology,what idea
Q46: Long before Charles Darwin,Jean-Baptiste de Lamarck understood