Genética
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Leyes de Mendel, Genètica mendeliana, Cuadros de Punnet
![Introducción ,[object Object],[object Object],Gregor Joham Mendel](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Genética
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Notes de l'éditeur
- Must know these!!! Trait—A variable characteristic of organism. It’s something about the organism’s appearance, behavior, etc., that you’re interested in. Gene—A segment of chromosomal DNA controlling a specific trait. This refers to the genetic material that produces a product that determines the trait. Locus—The chromosomal position where a specific gene lives. This is the gene’s address, in terms of which chromosome does it live on and where on that chromosome does it live? Genome—Refers to all standard loci for a species. We can speak of the “human genome.” It is the list of the genes that humans have.
- Must know these!!! Trait—A variable characteristic of organism. It’s something about the organism’s appearance, behavior, etc., that you’re interested in. Gene—A segment of chromosomal DNA controlling a specific trait. This refers to the genetic material that produces a product that determines the trait. Locus—The chromosomal position where a specific gene lives. This is the gene’s address, in terms of which chromosome does it live on and where on that chromosome does it live? Genome—Refers to all standard loci for a species. We can speak of the “human genome.” It is the list of the genes that humans have.
- Phenotype—List of traits exhibited by individual Doesn’t always reveal genotype. Sometimes the presence of a dominant allele on the maternal chromosome will mask the presence of a recessive allele on the other chromosome. Dominant—Allele that is expressed 100% in heterozygote Recessive—Allele is not expressed at all in heterozygote but only in homozygote. Incomplete dominance—heterozygote displays intermediate version of the trait about half way between the full two homozygous phenotypes.