d.   In discussing a possible loan with the firm’s banker, Smith found that the bank is willing to lend Dellvoe up to $800,000 for one year at a 9% simple, or quoted, rate. However, he forgot to ask what the specific terms would be.

(1)      

(2)      

(3)      

(4)      

(5)      

(6)      

 

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In Discussion Forum 3, post your response to the following discussion questions. Reply to at least two classmates’ responses by the date indicated in the course Calendar.

• Air in a cylinder is compressed to one-tenth of its original volume without change in temperature. What happens to its pressure? Imagine now that a valve is opened in order to restore the initial pressure value. What percentage of the molecules have escaped?
• Consider a 40,000 km steel pipe in the shape of a ring that fits snuggly all around the circumference of the Earth. We are heating now the ring so its temperature increased by 1 degree C. Now, the pipe will no longer be snug. How high the ring will now stand above ground level? (Make as many simplifications as necessary). Data: Coefficient of linear expansion for steel is 11*10-6 /degree C. This means, for example, that a 1-meter bar of steel that increases its temperature by 1 degree C will expand 11*10-6 meters (11 micrometers)
• Farmers resort to spraying fruit trees with water before a frost to protect the fruit from freezing. Using the concepts learned in this module, discuss why this does or does not work.
• An electric fan not only does not decrease the temperature of the air, but it actually increases air temperature. How can you then explain that you are cooled by a fan on a hot day?

 

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1. In dogs, T = dominant allele for long tail, t = recessive allele for short tail,
2. B = dominant allele for brown, and b = recessive allele for black. When completing the cross TtBb x TtBB, what proportion of the F1 is ttBB?
3. What is the probability of a blue-eyed (recessive) mom and a brown-eyed (dominant) dad having a brown-eyed child? Consider all possible genotypes of Dad at this gene and give the probabilities associated with each genotype.
4. If the couple in b, had a blue eyed child, what is the probability of them subsequently having a brown eyed child and a blue eyed child?

 

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In Drosophila, the allele dp+ determines long wings and dp determines short (“dumpy”) wings. At a separate locus e + determines gray body and e determines ebony bodyy. Both loci are autosomal. The original parents were pure-bred with antagonistic traits, one of the parents had long wings and ebony body. The dihybrid F1 was test crossed with the following results:

Phenotype , Number: (Long, ebony 15) (Long, gray 136) (Short, gray 140) (Short, ebony 145)

You want to determine if the data support whether the genes are linked or sort independently by using the Chi Square test.

a. State the null hypothesis for this experiment.

b. Calculate the X2 value. You must show your work below: 

c. Determine the degrees of freedom and give the p-value range.

d. What does the p-value mean ( In other words, what % of the time you would expect the deviation from expected to occur by chance)?

e. What is your conclusion?

f. What was the genotype of the original parents?

g. Show the inferred chromosomal constitutions of the parents, the F1, the F1 tester, and the progeny. You can do by drawing a pair of parallel lines that represents each chromosome. Indicate the allele or alleles that are on each chromosome above or below the line. If you determined that the genes are linked, then both genes will be on the same chromosome. If they assort independently, then two sets of chromosomes must be drawn, one for each gene.

 

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in each graph in figure 6.5, the culture was incubated at 30 degrees in glucose minimal salts broth, aerobically. The bacterium is a facultative anaerobe with an optimum temperature of 37 degrees and can metabolize glucose and lactose. Indicate how each growth curve would change under the conditions indicated in each graph. draw the new graphs or write no change

 

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