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Fertilisation

Embryonic Development

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Biology
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reproductive system
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Germ cells
Developmental biology
Embryology
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Cortical reaction
Polyspermy
Human fertilization
Cortical granule
Sperm
Zygote

Embryonic Development Every species undergoes embryonic development in a different way. In general, genes code for specific synthesis of proteins that determine what organs and systems will be composed. However, all species differentiate types of cells in different ways, which can include an uneven distribution of cytoplasmic determinants (can activate genes to differentiate between types of cells.) Additionally, the differences in cells are based on their location in the developing embryo. These two tactics lead to cell differentiation where cells become different types as well as morphogenesis or the way an animal takes shape.

Campbell Biology Chapter 38 Outline

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Biology
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Biology
Botany
Plant morphology
reproduction
Plant reproduction
Pollination
Plant sexuality
Double fertilization
Ovule
Seed
Endosperm
Fertilisation

Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Chapter 38 Plant Reproduction & Biotechnology Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings "corpse flower" Rafflesia arnoldii Titan Arum (Amorphophallus titanum) Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Alternation of generations in angiosperms ? dominant sporophyte generation (2n) ? produces haploid spores (by meiosis) that develop within flowers (in anthers or ovaries) ? haploid spores develop (by mitosis) into multicellular haploid gametophytes ? male gametophytes = pollen grains ? female gametophytes = embryo sacs ? Pollination enables gametes to come together within a flower

Ap Biology Chapter 47 Review

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Biology
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Developmental biology
Biology
Zoology
reproduction
Embryology
Embryogenesis
Germ layer
Cleavage
Gastrulation
Archenteron
Embryo
Fertilisation
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Attachment theory
Ethology
Personal life
Technology

Chapter 47: Animal Development Overview ?It is difficult to imagine that each of us began life as a single cell called a zygote ?A human embryo at about 6?8 weeks after conception shows development of distinctive features 1. An organism?s development is controlled by the genome of the zygote as well as by molecules from the mother that are in the cytoplasm of the egg. What are these proteins and RNAs called? ?Development is determined by the zygote?s genome and molecules in the egg called cytoplasmic determinants 2. What is cell differentiation? ?Cell differentiation is the specialization of cells 3. How do cytoplasmic determinants affect cell differentiation? ?Structure and function 4. What is morphogenesis? ?Morphogenesis is the process by which an animal takes shape

Brief Overview of Fertilization and Reproductive System

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Biology
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fertility
Biology
reproduction
behavior
Germ cells
Male reproductive system
Semen
Spermatozoon
Fertilisation
Sperm
reproductive system
Corona radiata
health
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Personal life
Attachment theory
Evolutionary biology
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A Brief Overview of Reproduction and Fertilization in the Human Species

AP Bio Reading Guide Answers CH 47

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Biology
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Developmental biology
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Zoology
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Embryogenesis
Cleavage
Archenteron
Germ layer
Gastrulation
Embryo
Fertilisation
Invagination

Copyright ? 2011 Pearson Education, Inc. - 1 - Name _______________________ Period ___________ Chapter 47: Animal Development Overview 1. Before beginning this chapter let?s review the basic embryological stages common across a range of animal species. The basic embryological plan is zygote ? cleavage ? blastula ? gastrula ? organogenesis. Explain what each term means and how one stage leads to the next. Zygote: The product of a sperm and an egg fusing (i.e., fertilization) Cleavage: When a series of cell divisions divide or cleave the zygote into a many-celled embryo; typically rapid and lack accompanying cell growth, converting the embryo to a blastula Blastula: A hollow ball of cells that marks the end of the cleavage stage of an early embryo

Ch. 46 Notes*

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Biology
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Biology
reproduction
Genetics
fertility
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Developmental biology
Pollination
Ploidy
Parthenogenesis
Meiosis
sex
Fertilisation
#AP Bio #CampbellBiology

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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