Mankind will become Extinct unless we have Genetic Engineering
By: Rick Badman
Mankind will become extinct unless we have genetic engineering. Due to genetic degradation, our DNA is becoming weaker and subject to more errors. Unless there is genetic engineering, mankind may not last more than another 100,000 years, if that long. There are many reasons...
Introduction to skin genetics
By: Tami Port MS
Experience shows that people with fair complexions (low levels of melanin) are more prone to sunburn. New research now reveals that certain variations in the genes that control the color of our skin, hair and eyes are associated with an increased risk of melanoma and...
By: Tami Port MS
A mutation is an alteration of a gene's DNA sequence. Mutations are usually bad news, but those rare changes that benefit an organism are the raw material of evolution. Isn't Mutation a Bad Thing? DNA needs to be copied when cells divide, so that each...
An overview of human cloning
By: Raffael A. Ferri PhD
The Roman Catholic Church, under the papacy of Benedict XVI, has condemned the practice of human cloning, in the magisterial instruction Dignitas Personae, stating that it represents a "grave offense to the dignity of that person as well as to the fundamental equality of...
Should Pets be Cloned
By: Janice Suchoski
Cloning, by definition is to create a replica of something from the genetic material of that something. That the object is a living entity, individual of any other seems to be more of a challenge than an ethical consideration to those caught up in...
Genetic traits of the human eye: Melanin and myopia
By: Tami Port MS
Before discussing the genetics of eye pigment and myopia, it helps to first review some of the terminology related to these aspects of heredity. * Alleles: Variations of a Gene *Alleles are variations of a gene. A diploid organism gets one set of alleles (genes)...
The Ethical Difference between Cloning Animals and Humans
By: Alicia M Prater PhD
Boundaries exist between humans and animals in regards to medical testing, housing, ownership, euthanasia, purchased breeding, and a number of other areas, so why would it be different for cloning? A slippery slope would indicate that one could easily go from one position to another...
Genetic terminology: Diploid and haploid cells
By: Tami Port MS
Genetics is rife with potentially confusing scientific terminology associated with chromosomes and chromosome number. What is ploidy, and which cells are haploid? Which are diploid? What are homologous chromosomes? What are duplicated chromosomes? The intent of this article is to clarify some of this lingo...
Genetic terminology: Difference between duplicated and homologous chromosomes
By: Tami Port MS
Students often become confused during discussions of genetics, when it comes to the terminology associated with chromosomes and chromosome number. What are homologous chromosomes? What are duplicated chromosomes? What are sister chromatids? How do all of these terms differ and how do they relate to...
Genetic terminology: Chromosomes and sister chromatids
By: Tami Port MS
Students often become confused during discussions of genetics when it comes to the terminology associated with chromosomes and chromosome number. What are homologous chromosomes? What are duplicated chromosomes? What are chromatids? How do all of these terms differ and how do they relate to each...

 

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