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Reproduction and Development

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Reproduction and Development The essential feature of reproduction is hereditary information carried by nucleic acid DNA There are some plants and animals that act as both male or female Asexual Reproduction Types of chromosomes must be exactly the same in the daughter cells as in the parent
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AP Biology Chapter 13 notes Campbell/Reece

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Chapter 13 Meiosis and Sexual Life Cycles Variations on a Theme Heredity The transmission of traits from one generation to the next Genetics The scientific study of heredity and hereditary variation 13.1 Offspring acquire genes from parents by inheriting chromosomes A. Inheritance of Genes Genes Coded information in the form of hereditary units These genes are the reason we look like our parents in some ways. Functions of genes: program cells to synthesize specific enzymes and other proteins All these functions lead to the inherited traits that you can often see DNA The way the genes are programmed, the language. Almost all DNA is in chromosomes in the nucleus (except small amt in mito/chloro) Gametes These are the reproductive cells (i.e. sperm and eggs)

AP bio summer hw ch 4 questions

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AP Biology Summer Assignment Unit 4: Genetics Ch. 13- Compare and contrast sexual and asexual reproduction and list the advantages and disadvantages of each type of reproduction. Also, describe the most significant differences between mitosis and meiosis.

Ch. 46 Notes*

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Ch 46 Sexual Zygote ? fertilized egg Gamete- sex cell Egg Sperm Asexual Most animals do sexy only, but some do asex or both Mechanisms of Asex reproduction Invertebrates Fission-separation of a parent organisms into 2 individuals of equal size Sea anemone Budding- new individuals come from outgrowth of existing ones Corals Fragmentation and regeneration Sponges, cnidarians Parthenogenesis-asex where egg develops without being fertilized Bees, wasps, ants Haploid ? no meiosis occurred, no fertilization occurred, becomes adult that makes either egg or sperm. ? mainly male in honeybee and some ant populations Diploid- develop from fertilized eggs, becomes adult- worker ant or bees
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