Exam 2 -- Fall 2005 -- ANSWERS _do not distribute_

Exam 2 -- Fall 2005 -- ANSWERS _do not distribute_ - *...

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*-*giof05 Genetics Exam tr. Fall 2005 Your Name Signature Student number Section Number: Graduate Student Instructor: i;r L 'r( Please write your name on every page. There are 4 points for each of the 20 multiple-choice questions and 4 points for each of the 5 short-answer questions. There is a statistical table at the end of the exam, in case you need it. Blank paper has been attached to the exam to give you room to work. For the multiple choice questions, CIRCLE TI{E SINGLE BEST RESPONSE ON TIM BOTTOM OF THIS PAGE. For the short-answer questions, SHOW YOUR CALCUALTIONS, AND E)(PLAIN YOUR WORK CIEARLY AND NEATLY. OTTIERWISE, WE WILL NOT BE ABI.E TO GRANT PARTIAL CREDM. WRITE YOUR ANSWERS BELOW TIIE PROBI.EMS, NOT ON TItrS PAGE. WRJTE YOUR ANSWERS USING A NON-ERASABLE PEN. OTIIERWISE \4M WILL NOT BE ABLE TO CONSIDER AI\IY REQIIESTS FOR REGRADING. (1) (2) ,(e{ '(4) (s) (6) (7) (8) (e) (10) a(Ucdefg 6)bcd-efg ; i98:6; Glb c d e f s a b " d j f @ a A c d@ t "g a$) c d e f g a b@a.Ae a b c d e(flg -/x+:4 (11) (12) (13) (14) (1s) (16) (17) (18) (1e) (20) At Wb c d e f g "(8. d e f g a b c d e f @t a n@a e rt! a b; d u f , a b .@ " f i a b c@ e ! s a b c d e@S ; i:s6[ - (21)'L (22) o (23) 5 (24) T (2s) Y ,'
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;io305 Genetics Exam II, Fall2005 Name asZn=I'2chromosomes in somatic cells. How many'.ghromosomeqexist in a primary Qocse, a sryglqgy*999y!% a:rd an ovum? l/,' ' / a) L2,12, and 12 a"6)'12, 6, and 6 '"'c1'L2, !2, and6 d) 6,6, and 12 e)24,12, and12 f) 12,6, and 3 g) 24, L2, md6 ! 1l- { tt lt, I t"t I 1\l t/ -)t { u'', (.zY ' I .u" ,{ o '' 2.Thekaryotypes of human individuals wiitr t<tinetelter syndrome and Turner syndrome are ,'t-\ (#t, XXY and 45, X, respectively* 8+7,XXX and 45' X' respectively .cyAs,X and 4T,XXY,respectively "4d5,X and 47, XXX' respectively 6{4,',i ""0 45',Y,respeciively .&{7, XYY and 45 X' respectively #I,XYY and 45 Y, resPectivelY -4;tl"ntingto:t's diseas-e is an an disorder. The pedigree for a family );i LLwLrLLLtb'Y:l " ::"-: inanifesting this disease is shown below , .r.1-- al-a rL^ . ...^ ,.,r. ., ;:j;;J:'^fi';;il;:fi;;," nr*,*"__*-" nar, what is the probabilitv that the two kids will be ;ry;;ilrtand -on9 n-gsnal girl? *t* trA zi \\ \l $l /\ / \.. \ \ i\') | > -l r1 i .r -\-{1 / a) Ll2 e) Ll32 b) v4 n u64 c) 1/8 g) 1/128 (1 \ /rl 'f
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-t Bio305 Genetics Exam tr, Fall 2005 ,J ";,f,which sraremenr abour chromosomeg and ceil divisions in humans i, QqBBP-gr? 't, i', t,"., \ '/ .^ *i+^.ic io mrrnh lnnserthan intemhas, \'i'' "ff|hterms of time, mitosis is much longer than interphase' I '.bpuring spermatogenesis, spermatidsinO"rgo differentiation and become spermatozoa' - Chromoro*, nu*Lit rBUe$ iuring lrrii^{iner{11-ollftttt' 7t . *'e chromosome
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Exam 2 -- Fall 2005 -- ANSWERS _do not distribute_ - *...

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