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Punnett_Ex_Answers - 1310 ZHAO ModdianGenefi WWW OS 1...

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Unformatted text preview: 1310 .. ZHAO ModdianGenefi WWW: OS 1. Wufignmeotol'ieoernomnt Wimdmep'oblemmfuliy! 2. Udngflmileoersinsteaddwlndlewermefmofmemelmw reprmtdominantandmeesive amnion-nit. 3. Wdetmnfinafiondpmfibflmmd'minfifiduflémahyafimm enorflorflehovewaseomnai . 4. Ammingthalthemfltsd‘onemehmge flaeprobahility ofobtainingthe same mults again (13.3. “they already had their two blue-eyed chuck-en. so now they'll have two brown-eyed children) - the probability of any possible outcome is the same for eechoeemrenoemomnerhowmyofooetypeisfound. . W 1. Usually. human eye ooloris inherited as if brown eyes and blue to the corresponding recessive. A nun wi were due to a dominant factor th blue eyes monies a brown-eyed woman whose mother had bhse eyes. What proportion of their children would he expectedtohaveblueeyes? (flab Q: :5}: MA [5 b ‘ 5. In prden peas, tallness is dominant and dwarfness is messive. A heterozygous till - tismssedudthadwazf anLlH-Oofi' ' are mihowman ot'the fidheexpectedtobetall?pl- $11118 - prod y m Ttveo =1 _ -r ‘t ul" So’iom 4+ «ti-re it W 502 GLY‘W’Q’ %40%W5“ 5. In garden peas. the tallness trait is dominant over the dwarf eoxidition and the round- . need unit is dominant over the wrinkled-seed trait. These genes are on separate chromosomes. Give the expected genotypes and phenotypes. along with their expected ' tatios, for a cross between two individuals that are heterozygous for both tram. “Tau-IT Luau-51+. -. .‘ 5m -th=r\ er'“ tang/m ‘9 '1'"th- X T'i-K" I 6W3 ‘vc'm- H .L | '5‘ {55% .L I ”0'5; Emmi W‘ Xb'r'TRP; 57m :4"! l Fir-147': 'T 1242 R ‘Ae 'r'rrr, 3m. 'L‘ULRJFIIU'LVE’ T-Evr', fi/w‘x, fitflr, Kurt .. I 1 ‘ 3 db +WJ W34 W» . ”if?“ M; 3% M” “M ’31 $3th 7. In garden peas, the genesformoolor and stem length are on different chromosomes. Green pod color is dominant to yellow pod color and long stems are dominant to short stems. When a flue-bmedin plant with green pods and long stems is crossed with a plant with yellow and short stems, it is found that all offspring (F 1) have green pods and long stems. One of these F1 plants is crossed with a plant boring yellow podsandshonstems. Whatperoentaged'theplsntsfrosnthisommhaveyellow 0-15?!le W Ping/a *MSWWD 8. What enotypes of offspring would be can from two parents of genotypes Aan and as b? What are the expected ratios each ofthese possible genotypes? as ‘2» abmkeaeww WW 9. How many Ends of gametes on be pvoduoecl by an individual of genotype An‘BbCC? List eaohpossibletyped'gamete. .. Pmfibtt c5» W-hfilWWfi gum-ma» .RBQJwLAbCbee 10. Whai types of gametes would an F1 produce whose peanuts were a homozygous ' ytIIW-neded plant and a glen-seeded plant? P 35 x 6-b- Fl (1‘5 Floavmz‘hni 6-4-8 Ii. In a family when: the psi-ants both express the dominant cmiy—haired trait and their figch’ild hassuaight hair. what istheprobahiljty that their next childwill bewfly- 12. In a family where both parents express thedontinant-clniy- and flask-haired hits;- there is one child who has straight. light-colonel min-What an the hair genotypes of . the two parents? ' - . 2Q .5 ”Mt—um mpm Mai-bl. QeNM-vnlwb Mawmh «Add. 13. Cystlcfibrosisisafalal diseasethatiogiflel-finhafled. Supposeawoman who ' " ' whoisneitheraiTectchora carrier. Whal percentage oftbeir children would be expected to have the 'seas-C? @2651 {{mefi: C, $7!“ at . 010E- OVOW’lDMML-l-MW :‘-$ho} #M é-E—W 14.5uppoEe norm 1nqinandaflngmyalwomanhavetwochildrenaffectedwithcystic fibrosis. you were a genetic counselor, what would on advise them about. their chances of having any more children who would have the diseaser PM loo—M GAL Baabkbb {or W +— dlCJ-Q All) lac—us c9652.. bvos‘l R as“; 15. In squashplants. a gene for white fruit color is dominant over its allele for yellow color. If one parent of a cross is heterozygous and one halfof the offspring are yellowyhaz was the genotype of the other parent? wkdlhbuj’ 'z—Uo nor" 16. In snapdmgons, flower color is controlled by incomplete dominance. What will the enotypes of the offspring be R's-homozygous white plant is cmd with a Eta-onsets pink plant? ‘ _ 17. In shun-horned cattle, a red bull Closed with a white now yields offspfing that are all man. a shade between red and white. A cross between roan: should yield offspring of what phenotypes and ratios? - RML‘: V MN“ 7-“ MEN” YY‘ wxwu=Fl Vb.) We Wk W Uh’ mm rw xrw ~— a‘: m-rw U “9"” {rut-J rub-{t- 18. Given a parental cross between blue-floweted and white-fldwered plants. wh'nt ratio of phenotypic classes: would be expected in the F2 generation (obtained by self-crossing _ theFDiftheseu-mts showmoompletedommnnoe? . Wafd‘bfl- "z anew . wet-ks- tow "W“ Fl XFI (%"3) b ‘r J. 635b‘Ut 19. One of dworfism in humans isoaused by a single dominant gene; the condition is all Achondroplasfic owarfism. Dwan’ individuals are helerozygous, While persons who are homozygous roomsive are d’ normal stature. The homozygous dominant individuals all die before birth. lftwo achondroplastic dwarfs my and have a family. what fraction of their living ofi'sPfing will also he ochondxoplasfie dwarfs? FIR x _ . . _ 5* 4) 1W www' “*0 Mum-J61: . A man with red-green oo} or blindness, which is a sex-linked trait, marfioe a woman who is neither oolor-bllnd nor a omier of the gene for this trait. Indicate all of the possible genotypes and phenotypes, and their ratios, for any male and female children theyhave. O- _—_-, \Q m p, X W H: 114.9 M: (/2942 o“ x Y ...
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