Marquia James 3D2%26ndsp%3D18%26hl%3Den%26rlz%3D1T4DKUS_enUS261US262%26sa%3DN%26start%3D18http://images.google.com/imgres?imgurl= 650.jpg&imgrefurl= /images%3Fq%3DHuman%2Borgins%26gbv%

 The first primates were rodent like insectivores that lived about 60 million years ago.  Aegyptopithecus and Dryopithecus were the first primates to walk upright. Aegyptopithecus.jpg&imgrefurl= aegyptopithecus.html&usg=__j5OPsRlXXF006ER_whdAATdYSY4=&h=257&w=400&sz=31&hl=en&start=10&um=1&tbnid=YTIqgmyzMGAWYM:&tbnh=80&tbnw=124&prev=/images%3Fq%3Dae gyptopithecus%26hl%3Den%26rlz%3D1T4DKUS_enUS261US262%26sa%3DN%26um%3D1

 They believe hominines are ancestral to humans only.  Lived between million years ago.  They were more upright and had smaller brains than their ancestors.

 Molecular evolution considers differences at genome, chromosome, protein, or DNA sequence levels with the mutation rates to species relatedness.  Humans and chimps share 98.7% of their protein gene sequence.

 Single genes and differences in gene expression can account for great distinctions between humans and chimps.  The human genome shows many signs of past duplication _468x608.jpg

 Gene sequence information from several species may be used to construct evolutionary tree diagrams.  A molecular clock is based on the known mutation rate of the gene applied.

 Molecular clock selects the evolutionary trees requiring the fewest mutations, which is therefore the most likely.

 Molecular clocks are based on mtDNA data, which is used to study human origins and expansions.

 Eugenics is the control of individual reproduction to serve a societal goal.

 According to the British Medical Journal Positive and negative eugenics are two pronged programs that would increase the frequency of “socially good” genes in the population and decreases the “bad genes.”

 Kevels, Daniel, 1999, Eugenetcs and Human rights, British Medical Journal, 319(7207): 435– 438.  Lewis, Ricki, 2008, Human Genetics concepts and Applications. Mc-Graw Hill, New York, 442.