Danielle 1-2

Danielle 1-2 - Homework Problems 2.4, 2.5, 2.9, 2.10, 2.11,...

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Homework Problems 2.4, 2.5, 2.9, 2.10, 2.11, 2.12, 2.13, 2.15. Due: Wednesday, Jan 23 (Sec 5,6,7 or Friday, January 25 (Sec 8,9,11,12) (Along with additional problems).
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Genetics: The Science of  Inheritance Genotype (Inherited traits) Environment    (Social structures) Phenotype (Actual characteristics of  organism)
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Genetics is the study of inheritance. Inheritance in the terms of heredity and diversity Its important because: diseases (types of cancer) We are colonies of cells that have “decided” to work together because its beneficial These cells share the same genes which are passed on to the next generation Controversial genetic issues Genetically modified organisms (GMOs) Stem cells Incarceration rate by gender: men are 10 times more likely as women to be in prison Y chromosome in males But incarceration rate is increasing faster among women than among men (from 2003-2004, 2.9% increase for women, 2.0% increase for men) How do we explain this? Genetics cannot account for such a huge increase Environmental factors- family structures, law systems, etc. Many genetic diseases have environmental factors
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•Genotype  refers to the  genetic makeup  of an organism. •Heredity  is the  transmission of genetic characters  from parents to  of genes during meiosis and fertilization.  •This results in the formation of a new individual similar to others  of its kind but exhibiting certain variations resulting from the  particular  mix of genes  and their interactions with the  environment (diversity ).  •Phenotype  - The  appearance  of an organism resulting from the  interaction of the genotype and the environment Genotype + Environment = Phenotype
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Genetic Variation in Chickens Gold-laced Wyandotte Black Wyandotte
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White-crested Polands Through animal breeding, there can be lots of variation among  species 
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Genetically-engineered resistance to the European Corn Borer Fig. 1.14   Genetically modified bamboo vs. one that is not (has  been attacked by an insect)
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Structure of Eukaryotic Cells Fig. 2.2: DNA is in nucleus, mitochondria, chloroplasts 
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DNA is found in: Nucleus Mitochondria and chloroplasts derived from prokaryotic symbionts. •KEY POINTS •Chromosomes, the cellular structures that carry the genes, are composed of DNA,  RNA, and protein •In eukaryotes, chromosomes are contained within a membrane-bounded nucleus;  in prokaryotes they are not •Eukaryotic cells possess complex systems of internal membranes as well as  membranous organelles such as mitochondria, chloroplasts and the E.R.
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Danielle 1-2 - Homework Problems 2.4, 2.5, 2.9, 2.10, 2.11,...

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