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Water snakes are common in the area around Lake Erie. They live on the mainland as well as islands in the lake. The island and mainland populations are relatively isolated, but migration does occur. Interestingly, selection favors banded water snakes on the mainland and unbanded on the islands. Bandedness is controlled by one locus with two alleles: banded (B1) and unbanded (B2) with banded being dominant. Each generation, some proportion of snakes migrates from the mainland to the island. On the island, the frequency of B1 is very low (0.1). On the mainland it is much higher (0.9). Only 10% of the mainland individuals migrate successfully to the island. After migration, random mating occurs (no sexual selection). Each population then returns to HW equilibrium in the next generation, and selection occurs before the next bought of migration. The selection coefficient against banded water snakes on the island is 0.2 and it is 0 for the unbanded water snakes. What is the frequency of B1 after migration and selection? Please show all your steps.
A 33.1g block of copper (specific heat capacity of 0.386 J/g*°C) at 89.3°C is dropped into 50.0 g of a liquid at 22.0 °C. The final temperature of both the block and the liquid is 41.0 °C. Determine the specific heat capacity of the liquid.
The fossil archaeopteryx is the earliest known example of
What exactly is a cytoplasmic receptor and why is a small nonpolar molecule the most likely candidate to have a cytoplasmic receptor?
What would happen to the amount of blood in the ventricles at the end of diastole if diastolic duration becomes very short and what would this do to the pumping efficiency of the heart?
1.why do you look different as an adult than you did as a baby?2.use the lac operon to explain how genes can be turned
A very short physiology student is asked to analyze the blood pressure of a very tall student. She decides to measure the blood pressure at the level of the tall student's foot while he is standing
Multicellular animals have some mechanism to control cell mass that we do not understand; for in case, salamanders of different ploidies are the same size such that a haploid, a diploid, and a pentaploid organism are about the same size.
What are some modern day follow up experiments or studies of the original Meselson and Stahl experiment that can be researched/proposed/done/etc ?
q1. how does technology affect the ability to maintain confidentiality? q2. how might an effective system satisfy the
The700 genes on chromosome 22 (48Mb) average 19000bp in length and onaverage contain 5.4 exons, each which average266bp. On average, what fraction of each genesequence is converted to mRNA? What fraction of the whole chromosome do genes occupy?
Suppose that the fifty resident alligators at Wakulla Springs State Park represent a population that is NOT in Hardy-Weinberg equilibrium
Put briefly, an Answer Plan is a skeletal version of your Essay, setting out the way in which you intend to structure that Essay. The main purpose of the plan is to help you structure your Essay successfully (by getting the structure right before ..
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