(b) Examine in more detail the genes at the tip of the short arm of the Y chromosome by clicking on the top bar in the histogram of genes. A more detailed view will be shown. What known genes are found in this region? How many novel genes are there in this region? *30. Some researchers have proposed creating an entirely new, free-living organism with a minimal genome, the smallest set of genes that allows for replication of the organism in a particular environment. This organism could be used to design and create, from "scratch," novel organisms that might perform specific tasks such as the breakdown of toxic materials in the environment.

(a) How might the minimal genome required for life be determined?

(b) What, if any, social and ethical concerns might be associated with the creation of novel organisms by constructing an entirely new organism with a minimal genome?

31. What are some of the major differences between the ways in which genetic information is organized in the genomes of prokaryotes versus eukaryotes?

32. How do the following genomic features of prokaryotic organisms compare with those of eukaryotic organisms? How do they compare among eukaryotes?

(a) Genome size

(b) Number of genes

(e) Number of exons


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Report of the complete sequence of Drosophila melanogaster, the fruit fly.

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Analysis of the complete genome of the first plant genome to be published.

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Report of the sequence and analysis of the genome of C. elegans, the roundworm.

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Report of the genomic sequence of Mycobacterium leprae, the bacterium that causes leprosy.

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A good overview of bioinformatics and its economic potential. In the same issue, see articles on "The human genome business today" and "Beyond the human genome."

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A report from the public consortium on its version of the human genome sequence. Many articles in this issue of Nature report on various aspects of the human genome.

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A broad look at the yeast genome and what can be learned from its sequence.

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An analysis of the private draft of the human genome sequence. Much of this issue of Science reports on the human genome sequence and its analysis.

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