Principles+of+Genetics.ppt+

Principles+of+Genetics.ppt+ - CELLULAR BASIS OF VARIABILITY...

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1 CELLULAR BASIS OF VARIABILITY AND EVOLUTION The Cell Gene and DNA Functions of DNA Structure of DNA DNA Transmission of Information DNA from the Beginning http://vector.cshl.org/dnaftb/awards.html I. THE CELL AND ITS COMPONENTS CELL DIVISION: MITOSIS Mitosis=duplication CELL DIVISION: MEIOSIS Meiosis= Reduction FUNCTIONS OF MEIOSIS Recombination Of Genetic Information By: MEIOSIS
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2 Stage of Mitosis in the blood lily, Sadoxus : (a) interphase, (b) prophase, (c) late prophase, where the nuclear membrane disintegrates, (d) early metaphase, (e) metaphase, (f) early anaphase, (g) late anaphase, (h) early telophase, (I) late telophase and formation of the new two cells The process of mitosis and meiosis the formation of body cells . Each chromosome duplicates itself from 46 to 92 46 92 92 46 46 Original and copy separate as cel divides Two daughter cells are identical copies of the parent cells Gametes unite in the process of fertilization, restoring the diploid number of chromosomes What number of chromosomes in the new individual come from each parent? Half the total number of chromosomes come from each parent
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3 Mitosis and Meiosis:The Haploid- diploid Cycle of Sexual Reproduction: Sexual reproduction parcels out chromosomes in new combinations Meiosis. The first meiotic division is called reduction division because each of the two resulting
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This note was uploaded on 11/18/2009 for the course ANTHRBIO 161 taught by Professor Mitani during the Spring '08 term at University of Michigan.

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Principles+of+Genetics.ppt+ - CELLULAR BASIS OF VARIABILITY...

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