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65 Cards in this Set
- Front
- Back
Natural Selection works..
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on a population, not an individual
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3 parts of Natural Selection
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Variability
Selective Pressure Differential Reproduction |
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Theory
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hypothesis that has been repeatedly tested and proven correct
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Discoverers of DNA structure
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Watson & Crick
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Nucleotide consists of...
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a single base, sugar, and phosphate unit
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Codon
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sequence of three nucleotide bases that codes for a single Amino Acid
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mRNA travels from the cell's nucleus to...
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ribosome to be translated to tRNA
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Aa
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heterozygous
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Gemetogenesis leads to...
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sex cells
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Recombination occurs often during meiosis and is a source of human variation (T/F)?
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TRUE
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Homodant teeth is not a ...trait
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mammalian
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locomotion of great apes
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quadrapedal knucklewalking
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Prehensile tail
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New World Monkey
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Sits on Rump Pad
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Old World Monkey
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Toothcomb and grooming claw
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Prosimian
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Brachiates and no tail
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Lesser Ape
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Old World Monkey dental formula
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2-1-2-3
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Why are teeth commonly studied?
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They are genetically stable and are shared/derived traits
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Hypocone
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tooth cusp that is distal-lingual upper molar cusp and is a shared derived trait of primates
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Diastema
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Larger than normal space between teeth, seen near the canine teeth in many primates
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Tooth complex where upper canine is sharpened by lower sectorial premolar
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Honing Triad
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First fossil monkey(Antrhopoid) found
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Aegyptopithecus
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Plesiadapis from Paleocene(65mya)
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dental primate, shares hypocone w/ primates but nothing else
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Taxonomy
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system for classification of animals
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Adaptive Radiation
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spreading out of species into new available niches, usually caused by climate change
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Prosimians
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Dental:36, 2-1-3-3, tooth comb
Locomotion:vertical climbing & leaping Characteristics:claws, sharp teeth Example:lemur |
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New World Monkey
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Dental: 36, 2-1-3-3
Locomotion:vertical climbing & leaping Tail:Prehensile tail Example:Spider monkey |
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Old World Monkey
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Dental:32,2-1-2-3
Locomotion:Quadrapedal Tail:long Characteristics: rump pads EX:babboon |
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Lesser Apes
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Dental:32,2-1-2-3
Locomotion:brachiating, bipedal No Tail Characteristics: reduced thumb EX:gibbons |
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Greater Apes
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Dental:32,2-1-2-3
Locomotion:knuckle walking no tail Most intelligent EX:gorilla, chimps, orangutans |
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Eocene(Adapid)
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Primates of modern aspect
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Oligocene(Aegyptopithecus)
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First Anthropoids
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Miocene(Sivapithecus)
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Radiation of apes
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Proximal
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closer to origin of body part or point of attachment
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Distal
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farther from the origin of body part or pt. of attachment
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Superior
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toward the head end or upper part of body structure
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Inferior
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away from the head end of lower part of structure
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Lateral
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away from the midline of the body
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Medial
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toward or at the middle of the body
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Anterior
Posterior |
front of body
back of the body |
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Evolution(def.)
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descent with modification
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How did world begin?
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Spontaneously forming molecules
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Who begun antrho?
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Franz Boaz
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Function(def.)
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describes the structure and operations of an organism or as parts
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Earliest form of life
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molecules
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2 processes that occur in DNA
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replication, protein synthesis
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Biggest source of variability in people
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mutation
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Chief agency in causing change in evolution?
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Natural Selection
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Alleles are...
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alternate forms of a gene
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What is Anthropology
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study of humans/primates
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Genetic Drift
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accident that removes a small infrequent gene from a population
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When looking @ evolutionary relationships, considered _____ not _____ characteristics
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derived not primitive
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Humans and chimps share what percentage of genetic material
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98.5%
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What two things are preserved the best on the human body
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teeth and bones
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reptiles have this type of dentition
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homodant
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insectivores have...
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sharp teeth/sheer
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Origin of primates
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tree shrews
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A chromosome does what?
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carries genetic info on loci
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Genotype
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exact genetic makeup
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phenotype
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physical characteristics
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BB
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Homozygous dominant
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bb
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homozygous recessive
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Mitosis
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cell replication, replicates itself to make an exact copy
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Meiosis
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sex cell division
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Species
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closely related organisms that are genetically isolated
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