Each curve in the graph below shows the proportion of amino acid between a protein in two species that diverged from a common ancestral species. Which protein is the MOST conserved (i.e., changes most slowly in sequence) ? 
Definitions:
Evolution Unfolding
A process describing the gradual development of organisms and natural phenomena over time.
Lake Washington
A large freshwater lake adjacent to the city of Seattle in the state of Washington, USA, known for its natural beauty and recreational activities.
Stickleback
A small fish known for its distinctive spines on its back and its complex mating behaviors.
Fossil Evidence
Physical remnants of organisms from the past, preserved in geological formations, that provide information about the history of life on Earth.
Q2: How can researchers distinguish exons from introns
Q43: In contrast to linear DNA replication, circular
Q51: The two strands in a molecule of
Q59: An individual is homozygous for a gene
Q73: Organelles such as mitochondria and chloroplasts contain
Q86: In the eukaryotic DNA sequence below, each
Q113: A point mutation that causes no change
Q160: The enzyme that catalyzes the addition of
Q179: Animals that sexually reproduce are _ and
Q180: Consider the Y-chromosome haplotype depicted in red