Genetic Diversity

Evidence:

  • Of or referring to the mitochondria, the organelles that generate energy for the cell.Mitochondrial Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA

  • Y chromosomal Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA

  • Linkage disequilibrium

  • Repetitive stretches of short sequences of DNA used as genetic markers to track inheritance in families.Microsatellites
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Slide 26 of 109

Scientists use several different tools to examine human genetic diversity. Most of these tools involve genetic The order of nucleotides in a DNA or RNA molecule, or the order of amino acids in a protein molecule.sequences that are not subject to recombination, which would complicate the analysis of the data.

Definitions

Of or referring to the mitochondria, the organelles that generate energy for the cell.Mitochondrial Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA ( Genetic material found in mitochondria, the organelles that generate energy for the cell.mtDNA)
Male sperm contribute only genetic material and no cellular organelles. Therefore, all Genetic material found in mitochondria, the organelles that generate energy for the cell.mtDNA comes from the egg, being passed down exclusively by females.
Y chromosomal Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA
A small chromosome that determines the sex of an individual. Embryos that posses a One of the two sex chromosomes that determines maleness in mammals, carried and passed down from males to males.Y chromosome become male. Therefore, the genetic information on the One of the two sex chromosomes that determines maleness in mammals, carried and passed down from males to males.Y chromosome is passed down only by males.
Linkage disequilibrium
The non-random association of Variant forms of a gene at a particular locus, or location, on a chromosome.alleles at different Multiple places on a chromosome where specific genes or genetic markers are located, a kind of address for the gene.loci (or regions within Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA The order of nucleotides in a DNA or RNA molecule, or the order of amino acids in a protein molecule.sequences), not expected from the law of independent assortment.
Repetitive stretches of short sequences of DNA used as genetic markers to track inheritance in families.Microsatellites
Repetitive stretches of short sequences of DNA used as genetic markers to track inheritance in families.Microsatellites" are Multiple places on a chromosome where specific genes or genetic markers are located, a kind of address for the gene.loci where short The order of nucleotides in a DNA or RNA molecule, or the order of amino acids in a protein molecule.sequences of Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA are repeated in tandem arrays (one right after the other).

References

  1. Lynn B. Jorde, L.B., et al. 1997. Microsatellite diversity and the demographic history of modern humans. Proc. Natl. Acad. Sci. USA 94: 3100-3103

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Last Modified June 21, 2006

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