BIOL 430 2010 Lecture 5 handout 6 slides

BIOL 430 2010 Lecture 5 handout 6 slides - 1 BIOL 430...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 BIOL 430 Lecture 5: January 20 th 2010 Techniques contd Model Systems: Fly, Worm, See Wolpert Chapter 2 pp. 31-38 BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca) Chapter 5 pp.185-191 Seminar Presentations: Your article will stay the same even if your partner drops the course. If your partner drops: 1. I will assign a new partner from the waiting list or Notes and Announcements BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca) 2. You will present by yourself (or just two people will present) Please note: You should read the Entire paper(s) Even if you plan to present half the paper it is necessary to understand the whole article. Definition of a gene: WordNet: a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity. Wikipedia: A gene is the basic unit of heredity in a living organism. All living things depend on genes. Genes hold the information to build and maintain an organism's cells and pass genetic traits to offspring. Answers.com: A hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes Websters : a specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that is the functional unit of inheritance controlling the transmission and expression of one or more traits by specifying the structure of a particular polypeptide and especially a protein or controlling the function of other genetic material. Oxford: a distinct sequence of DNA forming part of a chromosome, by which offspring inherit characteristics from a parent. Genes IX: is the segment of DNA involved in producing a polypeptide chain ; it includes regions preceding and following the coding region as well as intervening sequences between individual coding segments BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca) Definition of a GENE has evolved with time: Definition 1860s1900s: Gene as a discrete unit of heredity Definition 1910s: Gene as a distinct locus Definition 1940s: Gene as a blueprint for a protein Definition 1950s: Gene as a physical molecule Definition 1960s: Gene as transcribed code Definition 1970s1980s: Gene as open reading frame (ORF) Definition 1990s2000s: Annotated genomic entity, enumerated in the databanks (current view) Human Genome Nomenclature Organization : a DNA segment that contributes to phenotype/function. In the absence of demonstrated function a gene may be characterized by sequence, transcription or homology A gene is a union of genomic sequences encoding a coherent set of potentially overlapping functional products....
View Full Document

Page1 / 7

BIOL 430 2010 Lecture 5 handout 6 slides - 1 BIOL 430...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online