Arts Of Life

Study Guide Exam 3 1.   neck the phases of mitosis and meiosis swell up: Mitosis: chromosome number does not change A) Prophase- centrosomes extend to opposite sides/ thermonuclear envelope disappears/ spindles attach/ 4 duplicated chromosomes B) Metaphase- miotic drug spindles line up chromosomes along imaginary center (metaphase plate) spinder fibers avail center the chromosomes (centrioles- take a crap protein fibers/ spindle) C) Anaphase- spindles contract shorter/ fragment chromosomes / cell stretches/ 4 unduplicated chromosomes. D) Telophase- nuclei starts to form E) Cytokinesis- cell splits becomes 2 cells light reflex: only for sex cells diploid to haploid (46 chromosomes to 23 chromosomes) light reflex- makes spermatozoon + egg cells/ homologous chromosomes have quasi(prenominal) inheritable info. pupillary reflex 1: A) Prophase 1- nucleus breaks down the centrosomes start press expiry in opposite directions/ the n crossover (chromosomes exchange familial material) B) Metaphase 1- homologous pairs line up/ held together at sites of get across over C) Anaphase 1- migration of paired chromosomes to poles (2 to the south + 2 atomic number 7) if a chromosome 21 goes north instead of south you get down syndrome) D) Telephase+ Cytokinesis- splinter into 2 cells (sperm + egg) the nucleolus comes back.

Meiosis 2- resembling as mitosis, but creates much chromosomes (haploid to diploid) makes more of the same cells and ends up with 4 cells with 2 chromosomes in each. No Interphase or Cytokinesis in meiosis 2. 2.      Know abo ut interphase and desoxyribonucleic acid du! plicate: Growth 1 (cells grow/ multiply)- desoxyribonucleic acid duplication- Growth 2 continues getting ready for Mitosis. Synthesis (S), in which the cell duplicates its DNA 3.      Know what homologs ar and when they separate: Homologs are cells similar in size, shape and genetic material, separate at Anaphase 1. 4.      Know what diploid and haploid are and the number of chromosomes in the military personnel gametes: haploid (23) is half the number of diploid (46), 46 chromosomes in human...If you want to get a full essay, array it on our website: BestEssayCheap.com

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