Essays Tagged: "Mitochondrial DNA"

Entropic and telomere shortening theories of aging.

y produced in a cell. These mitochondria possess their own simple sets of deoxyribonucleic acids, mtDNA. Unlike the chief set of a cell's DNA, mtDNA is not regulated and checked for damage very carefu ... ed and checked for damage very carefully. As such, if free radicals damage a mitochondrion's set of DNA, it will not be repaired and after such damage accumulates, energy production ceases and the cel ...

(5 pages) 96 0 4.3 Apr/2003

Subjects: Science Essays > Biology

Identification with DNA

e used to identify the remains of victims of the September 11th attacks.The other approach analyzes mitochondrial DNA, or mtDNA. Because mtDNA tends to survive long after nuclear DNA has disintegrated ...

(2 pages) 36 0 4.6 Mar/2004

Subjects: Science Essays > Genetics & Genome Projects

Cloning

an adult sheep(Mario,Christopher). The two share the same nucleic DNA, but differ interms of their mitochondrial DNA, which is vitally important for theregulation of the cell. The media and the press ...

(3 pages) 34 1 3.0 May/2004

Subjects: Science Essays

Chapter 19: Speciation

leven cichlid species are native to one, and nine are native to the other. Researchers analyzed the mitochondrial DNA from all of the species. They did the same for related species in neighboring lake ... ver systems, as a basis for comparison. They found that all species in each lake are alike in their mitochondrial DNA sequences, so they could be from the same original speciesPolyploidya. Sympatric s ...

(6 pages) 47 0 1.0 May/2006

Subjects: Science Essays > Biology

Debate on Single Origin Vs. Multi-regional Origin Theories

vidence which shows Africa was not the sole source of modern human DNA. The molecular evidence uses mitochondrial DNA to reconstruct our heritage and ancestors relationship to apes and baboons. The ev ... omo erectus to modern Homo sapiens with links among these populations through gene studies. Because mitochondrial DNA in inherited it can be used to study the increase of mutations to establish evolut ...

(3 pages) 24 0 3.0 Nov/2006

Subjects: Science Essays > Biology

Mitochondrial DNA in aging, and Disease

ereditary optic neuropathy) in several families could be traced to a small inherited mutations in a mitochondrial gene.2) The narrator of this article is Douglas C. Wallace.3) The research being condu ... aprox. 90%.5) In 1962 Rolf Luft and his co-workers at the Karoinska reported that an impairment in mitochondrial energy production caused a debilitating disorder.6) The interesting thing about the in ...

(1 pages) 14 0 0.0 Dec/2006

Subjects: Science Essays > Biology

Mitochondrial DNA

o this woman. The scientists arrived at this conclusion by analyzing the cells of living people and mitochondrial DNA (mtDNA).Mitochondria are tiny structures that produce energy for cells. Each indiv ...

(2 pages) 404 0 0.0 Dec/2009

Subjects: Science Essays > Biology

Genetic Engineering

IONS ASSOCIATED WITH GENETICALLY MODIFIED CHILDREN?By Elise BodenThe 21st century is the era of the DNA. The century before, was the era of computers, which brought about remarkable technological adva ... er baby".Genetic engineering is described as the use of various methods to intentionally manipulate DNA, to produce biological products or to change hereditary traits. It has many uses that include re ...

(4 pages) 0 0 0.0 Nov/2014

Subjects: Social Science Essays > Controversial Issues