ch 13 woobie

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allele

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1

allele

an alternative form of a gene is a(n) ________ and an example would be how some pea plants are tall and some are short

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2

2 4

meiosis I gives you _ cells and meiosis II gives you _ cells

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3

homologous chromosomes yes sister chromatids no

meiosis I has __________ _______ and crossing over? (yes/no) and meiosis II has ________ _________ and crossing over? (yes/no)

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4

meiosis no po

interphase G1, cell is growing to prepare for _______, can you see the chromatin? (yes/no) and its mr _____

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5

pod

interphase s phase of meiosis is mr _____

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6

condense fragments forms tetrod bivalent crossing over chiasmata

prophase I of meiosis a lot happens! sister chromatids ________, the nuclear envelope _______, and the spindle apparatus _____. ALSO the homologous chromosomes create a ______, also known as a _______ (ib is so persnickety) there is ________ ____, and the __________ is the point of attachemtn between 2 non sister chromatids (which is the result of the crossing over)

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7

metaphase plate

in metaphase I, the homologous chromasomes line up where?

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8

law of independent assortment

what is the law that says one sister chromatid doesn’t influence how other sister chromatids line up

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9

interphase g1 interphase s phase interphase g2 prophase I metaphase I anaphase I telophase I/cytokinesis I prophase II metaphase II anaphase II telophase II/cytokinesis II

write out meiosis in order like we had it on the woobie not including the end product which is 4 genetically different haploid cells

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10

anaphase II

in which phase do the sister chromatids separate and move towards the poles

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11

law of segregation

what law says that there’s only one allele for each trait per gamete

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12

splitting of the cytoplasm

cytokinesis is the

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13

2

ok prophase II is now happening, how many cells are there

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14

yes

if i wrote prophase 1 would it be wrong

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15

no no

in prophase II, is it homologous chromosomes still? (yes/no) and does crossing over happen again? (yes/no)

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16

disappears decondense forms

prophase II, the nuclear envelope ________, sister chromatids ________, and the spindle apparatus _____

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17

complete

metaphase II, the spindle apparatus is ________ and per usual the sister chromatids are lining up at the metaphase plate

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18

interphase g1

in what phase do the centrioles replicate

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19

4 genetically different haploid cells

what does meiosis create

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20

non-disjunction

___________ is what creates too many or too few chromosomes

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21

homologous chromosome

in meiosis I, non-disjunction is bc of the failure of ________ ________ separation

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22

2 2 0

non-disjunction in meiosis I creates _ (n+1) and _ (n-1) and _ (n)

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23

sister chromatid

in meiosis II, non-disjunction is bc of the failure of ______ ________ separation

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24

1 1 2

non-disjunction in meiosis II creates _ (n+1) and _ (n-1) and _n

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25

okay!

go look at your woobie and try and draw some of it!

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