Hrincevich_CH_11_second_half_student_outline_on_MEIOSIS

Hrincevich_CH_11_sec - Thelecturetodayis rated Itsdealswith thegood,thebad,andtheugly An octopus does it by passing a sperm packet from male to

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The lecture today is  rated…
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the good, the bad, and the ugly… It’s deals with…
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An octopus does it by passing a sperm packet from male to female.
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So does a salamander
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Sea anemones do it by releasing huge clouds of eggs and sperm into the water
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Grunions (a type of fish) do it by swimming ashore during especially high tides and leaving eggs and sperm in the wet sand
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A male anglerfish does it by becoming a permanent part of a female male
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A female sea horse does it by depositing eggs in a male’s pouch
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And these fish even do it by changing from females into males when there’s a shortage
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Meiosis Chapter 11
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Evolved to pass on genes to another generation, cheating death and achieving immortality through offspring Asexual repro. Is repeated mitosis of cells in some body pt. and doesn’t generate new combos 1. Budding: Sponges, Anemones, Hydra 2. Fission: Splitting to form 2 smaller individual that regenerate missing pts; in Corals, Sea Stars, Flatworms Reproductive Strategies
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newly formed bud Hydra
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1. 2. Reproductive Strategies
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fission in flatworm
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Regeneration in a sea star
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1. 2. 3. Reproductive Strategies
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Female aphids born pregnant
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Sexual Reproduction involves production of haploid gametes (meiosis) and fertilization producing diploid offspring Reproductive Strategies
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Sexual Reproduction involves production of haploid gametes (meiosis) and fertilization producing diploid offspring 1) Separate sexes Reproductive Strategies
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Sexual Reproduction involves production of haploid gametes (meiosis) and fertilization producing diploid offspring 1) Separate sexes 2) Hermaphrodites: sperm and eggs produced by same individual, seen in immobile animals isolated from their species Reproductive Strategies
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Sexual Reproduction involves production of haploid gametes (meiosis) and fertilization producing diploid offspring 1) Separate sexes 2) Hermaphrodites: sperm and eggs produced by same individual, seen in immobile animals isolated from their species 3) External fertilization: both parents release sperm/eggs into water
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This document was uploaded on 10/26/2011 for the course BIOL 1001 at LSU.

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Hrincevich_CH_11_sec - Thelecturetodayis rated Itsdealswith thegood,thebad,andtheugly An octopus does it by passing a sperm packet from male to

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