Dihybrid Punnett Squares

Dihybrid Punnett - a Llrr b LLRR c LLRr d LlRr 4 Work the following dihybrid crosses Show all work Indicate phenotypic and genotypic ratios a LLRR

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Name _____________________________________________ Date _______________ Period ____ D IHYBRID P UNNETT S QUARES 1. In fruit flies, long (L) wings are dominant to short wings (l), and red eyes (R) are dominant to white eyes (r). a. What is the genotype of a short-winged fly? b. What is the genotype of a heterozygous red-eyed fly? c. What is the genotype of a short-winged, red-eyed fly? 2. What is the phenotype of a fly with the following genotypes: a. LLRR b. LlRr c. Llrr d. llRr e. llrr 3. What are the gametes that can be formed from a genotype of:
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Unformatted text preview: a. Llrr b. LLRR c. LLRr d. LlRr 4. Work the following dihybrid crosses. Show all work! Indicate phenotypic and genotypic ratios. a. LLRR x llrr b. LlRr x LlRr c. Llrr x llRr 5. In pea plants, tall (T) is dominant to short (t) and purple (G) is dominant to white (g). Using that information, perform the following crosses: a. Two heterozygous tall, purple pea plants b. A homozygous tall, purple pea plant is crossed with a homozygous short, white pea plant...
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This note was uploaded on 04/05/2011 for the course BIOL 2112 taught by Professor Deidra during the Spring '11 term at CSU Sacramento.

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Dihybrid Punnett - a Llrr b LLRR c LLRr d LlRr 4 Work the following dihybrid crosses Show all work Indicate phenotypic and genotypic ratios a LLRR

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