Bio Chapter 10

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emilyyx14
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82258
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Bio Chapter 10
Updated:
2011-04-27 11:10:05
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Bio
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Bio
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  1. what is the process called when cells divide to form reproductive cells
    meiosis
  2. what are identical chromosomes called
    homologous chromosomes
  3. what is it called when genetic information moves from one chromosomes to another
    crossing over
  4. when does crossing over occur
    prophase 1
  5. what type of cell is formed during meiosis
    gametes (haploid)
  6. how many chromosomes do gametes(haploids) have
    n
  7. what type of cell is a skin cell
    somatic cell (diploid)
  8. what's another word for diploid
    somatic
  9. what is a fertilized egg cell
    zygote
  10. how many times does a cell divide during meiosis
    2 times
  11. male gamete formation
    • equal division
    • spermatogenosis- process of making sperm
    • form 4 gametes
  12. female gamete formation
    • unequal division
    • oogensis- process of making eggs
    • form 1 gamete and 3 polar bodies
  13. what profession was Gregor Mendel
    monk
  14. what type of organism did Gregor Mendel study
    peas
  15. why did Gregor Mendel choose the organism in which he studied
    • cross pollinate & self pollinate
    • 2 distinct forms for every trait
    • small
    • produce offspring quickly
  16. what does f1 stand for
    • first generation
    • 2 parents mate
  17. homozygous
    • has the same alleles for a specific trait
    • ex: TT or tt
  18. heterozygous
    • has different alleles for a specific trait
    • ex: Tt
  19. dominant
    • if inherited, will always be expressed
    • CAPITAL LETTERS
  20. recessive
    • both traits must be recessive to be expressed
    • lower cased letter
  21. phenotype
    • physical characteristic that is expressed
    • ex: green eyes, blue eyes, brown eyes
  22. genotype
    the allele pairs that an organism inherits
  23. what 2 conclusions did Mendel come up with
    • Principle of Dominance- (dominant trait will always be expressed)
    • Law of Segregation- (when gametes are formed alleles for a specific trait separate)
  24. what is it called when a cell has more than 2n chromosomes
    polyploidy

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