Reproduction & genetics Donald Winslow 16 September 2010 Readings from Hoefnagels 2009. Biology, McGraw-Hill, New York. Ch. 8 pp 154-163 (cell cycle &

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Reproduction & genetics Donald Winslow 16 September 2010 Readings from Hoefnagels Biology, McGraw-Hill, New York. Ch. 8 pp (cell cycle & mitosis) Ch. 9 pp (meiosis & sex) Ch. 10 pp (Mendelian genetics)

Reproduction Cellular reproduction  Somatic Genome, genes in DNA in nucleus Cell cycle  G 1, S, G 2, Mitosis  Gametic Meiosis Organismal reproduction

The cell cycle G1G1 S G2G2 M

Organismal reproduction Types of reproduction  Asexual  Sexual Life cycles Genetics Costs of sexual reproduction Advantages of sexual recombination

Types of reproduction Asexual  cloning binary fission budding  Ameiotic & meiotic parthenogenesis sexual  dioecy (separate sexes)‏  monoecy (hermaphroditism)‏

Figure 7.1 From Hickman et al (13 th ed.)‏

Generalized sexual lifecycle femalemale Ovum sperm (gametes, 1N) meiosis 2N fertilization zygote (2N)‏ embryo development

Genetics Gregor Mendel Alleles, genes, and genomes Genotype & phenotype Dominance relations among alleles Monohybrid & dihybrid crosses Segregation & independent assortment Human blood groups

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