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What theory of inheritance was ultimately replaced by Mendel's laws? |
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2 | |
You have two tall pea plants in your garden. How might you determine whether they are homozygous (have two copies of the same allele) or heterozygous (have two different alleles)? |
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3 | |
Differentiate between genotype and phenotype. |
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In a dihybrid cross that displays independent assortment, what is the expected ratio of phenotypes in the F2? |
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If you suspect gene linkage, what would you do next to confirm your suspicion? |
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In the pedigree shown in Fig 2.10, predict the results of a mating between individual III-6 and an affected female. |
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7 | |
What is the probability that the following cross will produce an offspring that has dominant traits for all four characters?
AaBBccDd x AaBbCcDD |
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8 | |
What statistical equation is used to predict the probability of several independent events that could occur in any order? |
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How would you describe a set of experimental results in terms of goodness of fit if the chi square value is very high? |
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Give the formula for the chi square test. |
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11 | |
You perform a dihybrid cross in fruit flies using one dominant mutant (VanGogh, which has a unique swirl in the wing bristle pattern) and one recessive mutant (sepia, which have bright red eyes instead of the typical brick red) and find the following results in the F2. Normal eyes, VanGogh wings - 1011; Normal eyes, normal wings - 334; sepia eyes, VanGogh wings - 359; sepia eyes, normal wings - 120. Calculate expected results based on the prediction that Mendel's laws should govern this cross, and use those expected to calculate a chi square value. |
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Determine if the following data from a two point testcross in corn are significantly different from the expected 1:1:1:1 ratio. Sugary kernels, variegated leaves - 75; sugary kernels, solid green leaves - 101; normal kernels, variegated leaves - 88; normal kernels, solid green leaves - 92. |
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