socr8711

i keep getting the minor product

what reagents are needed to form disparlure with acetylene as your starting material?

Mice with the sticky (sti) mutation have rough, unkempt fur, develop tremors, and show neurodegeneration over the course of a year. You discover that the sti mutation results in a mutant alanyl-tRNA synthetase that mischarges tRNA-Ala with serine. You predict that mice with the sti mutation:

a) do not undergo translation

b) undergo translation except in fur follicle cells and neurons

c) undergo translation but produce some misfolded proteins

d) undergo translation of all mRNAs except those that have codons for alanine

On a bacterial gene, where is the Shine-Dalgarno sequence most likely to be located? At the transcription start site, the translation start site, or somewhere in between the two, or after the translations starts, or at the translation start site, or where transcription terminates,....?

Mice with the sticky (sti) mutation have rough, unkempt fur, develop tremors, and show neurodegeneration over the course of a year. You discover that the sti mutation results in a mutant alanyl-tRNA synthetase that mischarges tRNA-Ala with serine. You predict that mice with the sti mutation:

a) do not undergo translation

b) undergo translation except in fur follicle cells and neurons

c) undergo translation but produce some misfolded proteins

d) undergo translation of all mRNAs except those that have codons for alanine

You are studying a group of Kuwaitis who have hemoglobin H disease. Hemoglobin

H disease occurs when the alpha2-globin gene is not polyadenylated. When you compare

patients with and without hemoglobin H disease you are most likely to find that the

people with the disease have a mutation in the:

a) cleavage and polyadenylation specificity factor (CPSF)

b) alpha2-globin AATAAA motif

c) poly(A) polymerase

d) poly(A)-binding protein (PAB II)

e) Either answer a) or b)

f) Either answer b) or c)

g) Either answer c) or d)

h) Could be any of the above answers, you need more information

The string of A’s that make up the polyA tail is:

a) transcribed from a string of Ts in the DNA downstream of the stop codon

b) transcribed from a string of Ts in the DNA downstream of the transcription

termination site

c) added to the 3' end of the mRNA after transcription termination

d) added to the 3' end of the mRNA after an endonucleolytic cleavage

e) added to the 3' end of the mRNA after an exonucleolytic cleavage

You are studying a group of Kuwaitis who have hemoglobin H disease. Hemoglobin

H disease occurs when the alpha2-globin gene is not polyadenylated. When you compare

patients with and without hemoglobin H disease you are most likely to find that the

people with the disease have a mutation in the:

a) cleavage and polyadenylation specificity factor (CPSF)

b) alpha2-globin AATAAA motif

c) poly(A) polymerase

d) poly(A)-binding protein (PAB II)

e) Either answer a) or b)

f) Either answer b) or c)

g) Either answer c) or d)

h) Could be any of the above answers, you need more information

The string of A’s that make up the polyA tail is:

a) transcribed from a string of Ts in the DNA downstream of the stop codon

b) transcribed from a string of Ts in the DNA downstream of the transcription

termination site

c) added to the 3' end of the mRNA after transcription termination

d) added to the 3' end of the mRNA after an endonucleolytic cleavage

e) added to the 3' end of the mRNA after an exonucleolytic cleavage

I think its c or d but im not sure

A very long solenoid of circular cross section with radius r= 4.80cm has n= 69.0 turns/cm of wire. An electron is sitting outside the solenoid, at a distance r= 5.30 cm from the solenoid axis. What is the magnitude of the force on the electron while the current in the solenoid is ramped up at a rate of 44.0 Amps/second?

Three charges, Q1, Q2, and Q3 are located in a straight line. The position of Q2 is 0.268 m to the right of Q1. Q3 is located 0.125 m to the right of Q2. Q1= 1.56x10^-6 C, Q2=-2.84 x10^-6 C, and Q3= 3.03 x10^-6 C. Calculate the total force on Q2

Three charges, Q1, Q2, and Q3 are located in a straight line. The position of Q2 is 0.268 m to the right of Q1. Q3 is located 0.125 m to the right of Q2. Q1= 1.56x10^-6 C, Q2=-2.84 x10^-6 C, and Q3= 3.03 x10^-6 C. Calculate the total force on Q2

A listener is a distance r = 20.0 m from a small explosion and reports a sound of intensity 90.0 dB. What is the distance R from the explosion at which listeners hear an intensity of 70.0 dB?

What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.62 revolutions per second, assuming her to be a uniform cylinder with a height of 1.37m, a radius of 13.6cm, and a mass of 55.3kg.

I got- 11.6 kg*m^2/s

What is the magnitude of the torque that is required to slow her to a stop in 5.48s, assuming she does not move her arms?

At t = 0, a 738g mass at rest on the end of a horizontal spring (k = 113N/m) is struck by a hammer, which gives it an initial speed of 2.66m/s.

Determine the period of the motion.

Determine the frequency of the motion.

Determine the amplitude.

Determine the maximum acceleration.

A 7.00kg mass suspended from a spring with spring constant, k =975N/m, extends it to a total length of 0.390m. "Total length" includes the original, unstretched length. Find the new total length of the spring when a 13.80kg mass is suspended.