Genetics to Post 2016

8/17/2019 Genetics to Post 2016

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geneticskmstewart 2016


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The test cross


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Homozygous or heterozygousdominant?


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Are diferences signicant?


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Chi-suared !a"ues


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2013 P2 #2

#a$ %n a cross &etween a '"ant with 'ur'"e (oand a '"ant with white (owers) a"" the *1 '"a

'ur'"e (owers+ ,hen the *1 ofs'ring were c#se"ed$) .0/ '"ants had 'ur'"e (owers and 2'"ants had white (owers+

#i$ tate the e'ected ratio or the cross o t

ofs'ring+ 314

#ii$ tate an a''ro'riate nu"" #H0$ hy'othesis

a''ro'riate a"ternati!e #H1$ hy'othesis or a

suare test o the resu"ts+ 324

#iii$ Com'"ete Ta&"e 2 &y ca"cu"ating the mis

!a"ues+ 34


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#i!$ 5etermine the num&er o degreesreedom+ how your ca"cu"ation+ 314

#!$ sing the Chi-suare !a"ues in Ta&comment on the !a"idity o the nu"" hystated ear"ier+ 324


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2003 P1 #7

5ene the terms 8recessi!e a""e"e9 and 8dominant a

'arrows rom a wi"d 'o'u"ation ty'ica""y ha!e &roweathers+ %n a certain "a&oratory strain) a num&er oeathered indi!idua"s occur+ A ye""ow s'arrow is ma&rown s'arrow+ The resu"ts are shown &e"ow:

Parents: ;e""ow


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F1 Parents Brown x Brown Yellow x

F2 Progeny =


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#ii$ tate whether youacce't or reect thehy'othesis that the eatherco"ours are segregating in a@ende"ian ashion+ >i!e thereason or your answer+ 314


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Co-5ominance


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na'dragon B Codominance


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ick"e-Ce"" B Codominance


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2001 P1 #9

#c$ @rs+ i&&on and @rs+


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#i$ >i!e a"" the 'ossi&"e genoty'es o&a&ies whose 'arents are @r+ and @i&&on+ 374

#ii$ >i!e a"" the 'ossi&"e genoty'es o&a&ies whose 'arents are @r+ and @


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e 5etermination in Humans


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Faryoty'e


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Ca"ico cats are gir"s

Gne o the genes

contro""ing coatco"our is se-"inked

G I orange


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200 J1 K.

#a$ 5ene the o""owing terms: #i$ e "inkage 324 #ii$ A

#&$ %n humans) a recessi!e -"inked mutation) g) causedeecti!e co"our-!ision+ o&ert and hei"a) &oth with nco"our !ision) >) ha!e three chi"dren L Dohn) @ary and


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Name )enotype

Parents o&ert

hei"a

*hldren Dohn

@ary


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How do we know this is autosorecessi!e?


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CPN TG JGJN N G* JN5%>CHAT


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Co"our-&"indness inheritance


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5ihy&rid%nheritance


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5ih & id % h it


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5ihy&rid %nheritance


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Th 5ih & id t t


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The 5ihy&rid test cross


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Documents

Genetics to Post 2016