Blog

In corn, purple kernels are dominant over yellow kernels and full kernels are dominant over shrunken kernels. A corn plant having purple and full kernels is crossed with a plant having yellow and shrunken kernels, and following progeny are obtained   Phenotypes Number observed Purple, Full 112 Purple, Shrunken 103 Yellow, Full 91 Yellow, Shrunken 94 Total: 400 Based on the chi-square test, can we conclude that the progeny are segregating in the expected ratio and the variation between the expected and observed numbers is due to chance?  

Hair color is determined in Labrador retrievers by alleles at the B and E loci. A dominant allele B encodes black pigment, whereas a recessive allele b encodes brown pigment. Alleles at a second locus affect the deposition of the pigment in the shaft of the hair. Dominant allele E allows dark pigment (black or brown) to be deposited. Recessive allele e prevents the deposition of dark pigment, causing the hair to be yellow. A black female Labrador retriever was mated with a yellow male. Half of the puppies were black, and half were yellow. If the genotype of the black female parent was Bb Ee, then what was the genotype of the other parent?

A password used to gain access to a computer account is to consist of three lowercase letters followed by two digits.  Determine how many different passwords are possible if repetition of letters and digits is permitted repetition of letters and digits is not permitted

Calculate the energy needs of the following child. Show your work to receive credit. One line with the full equation, one with the multiplying done, then one line with adding all up and the final result will be sufficient.  Jurgen is a very active little boy who was measured at the Pediatrician on his 4 year old birthday and found to be 105 cm and 19 kg. Here is the appropriate equation. Remember how the variables – age, height, weight – are used. EER = -671.75 + (3.68 * age) + (15.38 * height) + (23.25 * weight) + 15  

Choose the following correct statement.

Which of the following is not true about process layouts when they are compared to product layouts?

In a product layout, the task of deciding how to assign work to specific stations is referred to as:

The process of assigning tasks to workstations in such a way that the workstations have approximately equal time requirements is called:

Three bonds A, B, and C are traded in the markets with respective prices being $98.04, $94.26 and $100.32. Bonds A and B are zero-coupon bonds with maturities 1 and 2 years, respectively. Bond C is a 3-year 5%-coupon bond with annual coupon payment paid at the end of each year (including year 3) and a face-value of $100 paid at the end of year 3. 1) Consider a new bond D which is a 3-year coupon bond with 7% coupon rate (paid annually) and a face value of $100. What is the fair value of bond D? 2) What will be the value of bond D if there is an increase of 0.1% to interest rates of all terms? 3) Suppose you owe $5,000 at the end of year 3. Concern about interest rate risk suggests that a portfolio consisting of bonds A, B, D and the obligation should be immunized. If V1, V2, and V3 are the total values of bonds purchased of types A, B, and D, respectively. What are the necessary requirements (express the requirements in terms of properly formulated equations) for setting up the immunization? (Hint: there are two equations. No need to solve them.)

2.) Current Density   Suppose current is running flows in a wire at a rate of I = 2mA. If the wire has a rectangular cross-section with dimensions: a = 0.6426mm and b = 0.3213mm. Determine the current density in the wire.