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Archive for October 22nd, 2007

Maize Mini-chromosomes. Algae as Biofuel

Posted in Biotechnology, Chromosome, Environment, Plant Transformation, Transgenics on October 22, 2007 | Leave a Comment »

This post is about two recent developments in the field of biotechnology and environmental science.
1) Agrobacterium-mediated transformation is the method of choice for inserting foreign genes into the plant genome. Through this method one gene could be introduced at a time in a single experiment. However, to introduce two foreign genes, one needs to develop [...]

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The Ac-Ds Transposon System

Posted in Genome organization, Repetitive DNA, Transposable Elements on October 22, 2007 | Leave a Comment »

The Ac-Ds system of maize is a muatble allele system. It was on the basis of studies on this system that Barbara McClintock proposed the concept of transposable elements. She received the 1984 Nobel Prize in medicine for her pioneering work on transposons.
Transposons, by inserting themselves into genes, cause mutations, and disrupt the trasncription of [...]

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