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geneticspg9 - DIHYBRID CROSSES 26 An individual has the...

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Unformatted text preview: DIHYBRID CROSSES 26. An individual has the following genotype, AaBb. ® ® ® 9 Write out the gametes that this individual could produce. 27. Mendel crossed a true-breeding, tall, purple—flowered pea plant with a true-breeding dwarf, white- flowered plant. All of the Fl’s were tall and had purple flowers. The Fl’s were crossed with each other. Fill in the genotypes for the Parents and Fl's in the spaces provided. Parents: Tall,PV‘ 1e .. X Dwarf, White -;,‘-;—“—- ; +0 ll , (Ll, l_ li) l (__l._l_: 'lP—Jlfl} C eel/Luce? (3 .. ,... F )U- l V. Viv}! FI'S Tall, Purple X Tall, Pumle I) ’ ,/ k k k: ((1 : lL'fiP) (l: 1; fig) “’3‘ w .. . . . a. First figure out thfiamete possibilities/fiet/lhe Fl‘s. Hint: Same as #26 above. 6' / 9 /b. Next construct a Punnett Square to figure out the 1/ f", different genotypes possible in the Fz’s V V P“ b. Use the above Punnett Square and figure out a“. the different phenotypes possible in the Fz’s. _ 7 - {ii 1‘} V c. What is the probability of getting an F2 that is tall and purple-flowered? q I j {I} inGlA lgfllEr j d. What is the probability of gettin an F2 that is heterozygous for both height and flower color? t ”2) no 7 ‘M 28. Use the information from the above question to calculate both phenotypie ratios and genotypic ratios for the results of each of the following cross: Tt pp x tt pp 10.09 ...
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