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Anthropology MY VOCAB
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Anthropology
Undergraduate 2
02/27/2010

Additional Anthropology Flashcards

 


 

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Term
Paleoanthropology
Definition
study of fossil record for human-kind
Term
Primate
Definition
Member of the mammalian order PRIMAATES, including prosimians, mnkeys, apes, and humans
Term
Evolution
Definition
A change in the frequency of a gene or a trait in a population over multiple generations
Term
Biological Anthropology
Definition
Study of humans as biological organisms, considered in an evolutionary framework, sometimes called physical anthropology
Term
Hominid
Definition
Member of the family HOMINIDAE distinguished by bipedal posture and, in more recently evolved species, a large brain
Term
Adaptation
Definition
A trait that increases the reproductive success of an organism
Term
Paleoanthropology
Definition
The study of the fossil record of ancestral humans and their primate skin
Term
Osteology
Definition
Study of the skeleton
Term
Paleopathology
Definition
Study of disease in ancient human populations
Term
Primatology
Definition
Branch of biological anthropology study anatomy, physiology behavior and genetics of livng and exctinct monkeys apes and prosimians
Term
Anthropology
Definition
Study of human kind in all its forms
Term
Taxonomy
Definition
science of classifying and naming living things. Invented by Linnaeus
Term
Binomial nomenclature
Definition
Linnean naming system for all organisms, consiting of a genus and species label
Term
Taxon
Definition
A group of organisms assigned to a particular category
Term
Adaptive Radiation
Definition
diversification of one founding species into multiple species and niches
Term
Natural Selection
Definition
Different repoductive success over multiple generations
Term
3 conditions necessary for Natural Selection
Definition
1. Trait must be inherited
2. Trait in question must show variation
3. Must be affected by the environment
Term
Cellular and molecular genetics
Definition
Study at the most basic levels, cells and the DNA molecule
Term
Classical or Mendelian genetics
Definition
looking at pedigrees of related individuals and tracking how various traits are passed from one generation to the next
Term
Population genetics
Definition
study of genetic variation within and between populations from molecular traits to visible traits
Term
Behavioral genetics
Definition
trying to understand how the behavior of animals is influenced by genetics
Term
Prokaryotes
Definition
Single celled organisms such as bacteria, in which the genetic material is not separated form the rest of the cell by a nucleus
Term
Eukaryote
Definition
A cell that posses a well organized nucleus
Term
Somatic cells
Definition
the cells of the body that are NOT sex cells
Term
Gametes
Definition
Sex cells: SPERM AND EGG
Term
Stem Cells
Definition
Undifferentiated cells found in the developing embryo that can be induced to differentate into a wide variety of cell types or tissues. Also found in adults
Term
DNA
Definition
Deoxyribonucleic acid. Double stranded molecule that is the carrier of genetic information.
Term
Proteins
Definition
Complex molecules formed from chains of amnio acids (polypeptide) or from a complex of polypeptides. Fucntion as strucutral molecules, transport molecules, antibodies, enzymes, and hormones.
Term
Ribonucleic Acid
Definition
Single stranded nucleic acid that perfroms cirtical functions during protein synthesis and comes in three forms: Messenger RNA, Transfer RNA, and Ribosomal RNA
Term
Mitochondira
Definition
Organelles in the cytoplasm of the cell where energy production for the cell takes place. has it's own DNA
Term
Endoplasmic Reticulum
Definition
An organelle in the cytoplasm consisting of a folded membrane
Term
Ribosomes
Definition
Structures composed primarily of RNA, which are found on the endoplasmic reticulum. Site of protein synthesis
Term
Nucleotide
Definition
Molecular buildilng blocks of nucleic acids DNA and RNA consists of a phosphate, sugar, and base
Term
Base
Definition
variable components of the nucleotides that form the nucleic acids DNA, RNA. In DNA bases are adenine, guanine, thyamine, cytosine. iIn RINA, URACIL replaces THYMINE
Term
Enzyme
Definition
A complex protein that is a catalyst for chemical processes in the body
Term
Hemoglobin
Definition
Protein found in the red blood cells that transports oxygen
Term
Hormone
Definition
Natural substance produced by specialized cells in one location of the body that inlfuences the activity or physiology of cells in a different location
Term
Amino Acids
Definition
Molecules that form the basic building blocks of protein
Term
Polypeptide
Definition
A molecule made up of a chain of amino acids
Term
Genetic code
Definition
System whereby the nucleotide triplets in DNA and RNA contain the information for synthesizing proteins from the twenty amino acids
Term
Codon
Definition
A triplet of nucleotide bases in mRNA that specifies an amino acid or the intiation or termination of a polypeptide sequence
Term
Gene
Definition
Fundamental unit of heredity.
Term
mRNA
Definition
Strand of RNA synthesized in the nucleus as a complement to a specific gene (transcription) it carries infor for the dequence of amino acids to make a specifi protein into the cytoplasm, where it is read at a ribosome and a protein molecule is synthesized (translation)
Term
tRNA
Definition
RNA molecules that bind to specific amino acids and transport them to ribosomes to be used during protein synthesis
Term
Mitosis
Definition
Somatic cell division, one cell divides to produce two identical daughter cells
Term
Meiosis
Definition
cell division that occurs in the testes and ovaries that leads to formation of sperm and ova (GAMETES)
Term
Chromosomes
Definition
discrete structures composed of condensed DNA and supporting proteins
Term
Centromere
Definition
Condensed and constricted region of a chromosome
Term
Diploid number
Definition
full complement of paired chromosomes in a somatic ell. 46 in humans (23 pairs)
Term
Haploid number
Definition
Number of chromosomes found in a gamete representing one from each pair found in a diploid somatic cell
Term
Homologous Chromosomes
Definition
members of the same pair of chromosomes (or autosomes) Homologous chromosomes undergo crossing over during meiosis
Term
Locus
Definition
Location of a gene on a chromosome. Locus for a gene is id'd by the number of chromosomes on which it is found and the posit on the chromosome
Term
Alleles
Definition
Alternative versions of a gene. Are distinguished from one another by their differing effects on the phenotypic expression of the same gene.
Term
Homozygous
Definition
Having the same allele at the loci for a gene on both members of a pair of homologous chromosomes
Term
Heterozygous
Definition
Having two different alleles at the loci for a gene on a pair of homologous chromosomes
Term
Zygote
Definition
A fertilized egg
Term
Crossing over
Definition
exchange of genetic material between homologous chromosomes during the first prophase of meiosis. Mechanism for genetic recombination
Term
Recombination
Definition
Rearrangement of genes on homologous chromosomes. occurs during crossover
Term
Karyotype
Definition
Complete chromosomal complement of an individual usually based on a photograph of the chromosomes visualized under the microscope
Term
Autosomes
Definition
any of the chromosomes other than sex ones
Term
Sex chromosomes
Definition
Chromosomes X and Y, XX female XY Male
Term
Non-disjunction
Definition
failure of homologous chromosomes (chromatids) to separate properly during cell division. May result in a missing or extra copy of a chromosome
Term
Genome
Definition
Sum total of all the genes carried by an individual
Term
Polymerase Chain Reaction (PCR)
Definition
Method for amplifying DNA sequendces using the Taq polymerase enzyme. Can produce millions or billions of copies of a DNA segment
Term
Mitochondrial DNA (mtDNA)
Definition
small loop of DNA found in the mitochondria. It is clonally and maternally inherited.
Term
Structural genes
Definition
Genes that contain the information to make a protein
Term
Regulatory genes
Definition
guide the expression of structural genes, without coding for a protein themselves
Term
Genotype
Definition
genetic makeup of an individual
Term
phenotype
Definition
an observable or measurable feature of an organism
Term
ABO blood type system
Definition
Refers to the generic system for one of the proteins found on the surface of red blood cells. Consists of one gene with three alleles, A,B,O
Term
Recessive
Definition
In a diploid organism refers to an allele that must be present in two cpies (homozygous) in order to be expressed
Term
Dominant
Definition
In a diploid organism, an allele that is expressed when present on only one of a pair of homologous chromosomes
Term
Co-Dominant
Definition
In a diploid organism, two different alleles of a gene that are both expressed in a heterozygous individual
Term
Particulate Inheritance
Definition
Concept of heredity based on the transmission of genes (alleles) according to Mendelian principles
Term
Mendel's law of segregation
Definition
The two alleles of a gene found on each of a pair of chromosomes segregate independtly of one another into sex cells
Term
Mendels law of independent assortment
Definition
Genes found on different chromosomes are sorted into sex cells independently of one another
Term
Linkage
Definition
Genes that are found on the same chromosome are said to be linked
Term
Point mutation
Definition
A change in he base sequence of a gene that results from the change of a single base to a different base
Term
Sickle cell disease
Definition
an autosomal recessive disease caused by a point mutation in anallele that codes for one of the polypeptide chains of the hemoglobin protein
Term
Autosomal Recessive Disease
Definition
A disease caused by a recessive allele; one copy of the allele must be inherited from each parent for the disease to develop
Term
Insertion Mutation
Definition
a change in the base sequence of a gene that results from the addition of one or more base pairs in the DNA
Term
Deletion Mutation
Definition
Change in the base sequence of a gene, results from loss of one or more base pairs in the DNA
Term
Trinucleotide Repeat Disease
Definition
a family of autosomal dominant disease that is caused by the insertion of multiple copies of a three base pair sequences that codses for the amino acid glutamine.
Term
Autosomal dominant disease
Definition
A disease that is caused by a dominant allele, only one copy needs to be inherited from either parent for the disease to develop
Term
X-linked disorders
Definition
Genetic conditions that result from mutations to genes on the x chromosome. Almost always expressed in males woh have only one copyp of the x chromosome.
Term
Pedigree
Definition
A diagram used in the study of genetics that shows the transmission of a genetic trait over several generations of family
Term
Qualitative Variation
Definition
Phenotypic variation that can be described as belonging to discrete, observable categories
Term
Quantitative Variation
Definition
Phenotypic variation that is characterized by the distribution of continuous variation (expressed using a numerical measure) within a population (ex. Bell Curve)
Term
Polygenic Traits
Definition
Phenotypic trats that resulft from the combined action of more tahn one gene; most complex traits are polygenic
Term
Pleiotropy
Definition
Phenomenon of a single gene having multiple phenotypic effects
Term
Heritability
Definition
Proportion of total phenotypic variability observed for a given trait that can be ascribed to genetic factors 0-1, 0 due to environment, 1 is genetic
Term
Phenylketonuria(PKU)
Definition
Autosomal recessive condition that leads to the accumulation of large quanitites of the amino acid Phenylalanine, which causes mental retardation and other phenotypic abnormalities.
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