You have some large milkweed bug nymphs to watch until they molt at least once. 1) The large milkweed bug is a member of the orderââââââââ-. The two main characteristics of adult insects that belong to this order are: 1. 2.
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1. Clover tongue is the ability to roll ones tongue into threedistinct lobes and is probably inherited as a dominant, simpleMendelian trait. In a population 90.25% of individuals can NOT rolltheir tongue into a clover tongue (i.e. they do not possess theclover tongue trait). What is the expected frequency ofheterozygous individuals in this population?
| 0.9500 |
| 0.9025 |
| 0.0950 |
| 0.0025 |
2. Assume that in the F2 of a series of crosses, 1/256 of theoffspring resemble one of the parents. How many gene loci areinvolved in producing these results?
| 8 |
| 6 |
| 4 |
| 3 |
3. Assume that three gene loci are involved in determiningphenotypes of F2 in an additive manner. How many phenotypic classesare expected?
| 9 |
| 8 |
| 7 |
| 6 |
| 4 |
| 2 |
4. The following values were estimated for corolla length in apopulation of honey-suckle. What is the narrow-sense heritabilityfor this trait in the population?
VE = 4.2
VA = 2.6
VD = 0.9
VI = 0.3
5. Toxin levels were measured in milkweed plants from a largecornfield in Iowa and found to have a mean level of 28.2 mg pergram and a variance of 15.3. Seeds were collected from these plantsand germinated in a single, large greenhouse allowing all plants togerminate and grow under identical environmental conditions. Atmaturity, toxin levels were assessed across all of these plants.The mean toxin level was 33.2 mg per gram with a variance of 8.70.What is the estimated broad-sense heritability for this trait inthis cornfield population of milkweed? Remember that H2= broad-sense heritability = VG/VP.
