Genetic Exam 3 (WIP)
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Last updated 11:03 PM on 3/18/23
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203 Terms
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Polyribosome
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2
Cilia
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Nuclear Pore
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Nuclear envelope
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Chromatin
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6
Nucleoplasm
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Nucleolus
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Nucleus
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Plasma membrane
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Smooth endoplasmic reticulum
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Golgi apparatus
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Microvilli
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Secretory vesicle
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Cytoskeleton
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Cytoplasm
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Peroxisome
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Centrioles
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Microtubules
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Free ribosomes
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Microfilaments
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Mitochondrion2
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Lysosome
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Exocytotic vesicle
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Rough endoplasmic reticulum
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Fixed ribosome
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Diploid cell (2n = 4)
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2
Meiosis 1
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3
Bivalent
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4
Prophase 1 (synapsis)
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Tetrad
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Metaphase I (two tetrads)
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Reduction division
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Dyads
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9
Meiosis II
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Equational division
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Monads
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Haploids (n) cells)
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Daughter cell (2n)
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Daughter cell (2n)
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Anaphase, Telophase
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Metaphase (Four chromosomes, each consisting of a pair of sister chromatids)
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Sister chromatids
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Prometaphase
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Mitosis
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1
Meiotic prophase I
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Leptonema
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Zygonema
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Pachynema
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Diplonema
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Diakinesis
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What are the two ways to describe chromosome separation?
Traction-fiber and Pac-man
One or both models are probably responsible for separation in both mitosis and meiosis.
One or both models are probably responsible for separation in both mitosis and meiosis.
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What is the traction-fiber model for chromosome separation?
Separation force is produced along the fibers (sliding model). Best explains \n separation in meiosis
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What is the pac-man model for chromosome separation?
Separation forces by disassembly of microtubules at kinetochore (centromere) region. \n Best explains separation in mitosis
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Primary follicle
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Graafian follicle
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Ruptured follicle
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Surface epithelium
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Corpus hemorrhagicum
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Corpus luteum
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Corpus albicans
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Atretic follicle
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Secondary follicle
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Tertiary follicle
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Egg nest
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What are the two types of spermatogenesis?
Spermatocytogenesis and Spermiogenesis
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What is spermatocytogenesis?
Spermatogonium → Spermatid \n (2N, 4C) (1N, 1C) \n “Genetic”
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What is spermiogenesis?
Spermatid → Spermatozoan
(1N, 1C) (1N, 1C)
“Metamorphic”
* loss of cytoplasm
* addition of flagellum
* addition of acrosome
(1N, 1C) (1N, 1C)
“Metamorphic”
* loss of cytoplasm
* addition of flagellum
* addition of acrosome
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Spermatogonium
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Primary spermatocyte
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2n
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Growth meiotic prophase
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2n
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Secondary spermatocyte
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Division I Reduction
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Anaphase I
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n
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Anaphase II
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n
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Division II
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Spermatid
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n
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Metamorphosis
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n
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Sperm
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2n
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Oogonium
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Meiotic prophase
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2n
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Primary oocyte
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Secondary oocyte
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Division I Reduction
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\`First polar body
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n
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n
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Division II
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Polar bodies
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n
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n
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Egg
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How many “steps” are in oogenesis in mammalian?
13
Note 
Flashcards (35)