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A genomic library is made for a haploid organis with a genome of3 X 10^9 bp. If you want to clone 5 genome equivalent into a vectorlibrary that carries 20 kb per contruct, how mny individual clonedo you need to make?

The correct answer is 7.5 X 10^5. But how do they get thisanswer?

Need to prepare a 500-600 word statement of your position on theconnection between economic and environmental health.

The Foramen of Panizzi:

The question is:

Does the concetration of RBC's (red blood cells) in sheep differfrom the typical value in humans?

I would think that they would differ, but I think that is justbecause they are different species. Help? Thanks!

. Describe the effects on renal blood flow, local pressures
and GFR following vasoconstriction of: 1) the afferent
arteriole, 2) the efferent arteriole, and 3) an equal increase
in both.

1. ) How does the maximum flow rate during the cough compare tothe forced expiratory flow rate during forced breathing?

2. ) How does the volume of air expelled during a cough compareto the subject

Need brieft synopsis about water contamination at Camp Lejeunefrom Senator Hagan's aspect; and how you want the senator to voteon this issue about Agency for Toxic Substances and DiseaseRegistry's and why you want the senator to vote this way. So thereare 3 questions to be answered.

If the demands for O2 and CO2 are the same in either bodyposition, should tidal volume and breathing rate be affected bybody position? Do you see this?

10. Would you expect any difference in the levels of O2 and CO2in the exhaled air of a subject who is standing or lying down?

1.) If the blood pressure in all pulmonary capillaries is thesame, would you expect the capillaries to be open or collapsed?

2.) If all pulmonary capillaries are open when lying down, whatis the functional effect on the diffusion of O2 and CO2?

1.) If some capillaries are collapsed, what is the functionaleffect on the diffusion of O2 and CO2?

2.) . Would you expect any difference in capillary bloodpressures in the apex or in the base of the lungs in a subject whois lying down?

1.) Would the blood pressure in the pulmonary capillaries at thebottom of a lung be the same as the blood pressure in thecapillaries at the top of a lung in the standing individual? Whicharea would have the lower blood pressure?

2.) With the answer to Question 1 in mind, if lower bloodpressure allows more pulmonary capillaries to be open, where in thelung would you expect to find more collapsed capillaries, at thebase or at the apex?

1. In humans the presence of chin and cheek dimples is dominant tothe absence of dimples, and the ability to taste the compound PTCis dominant to the inability to taste the compound. Both traits areautosomal, and they are unlinked. The frequencies for dimples are D= 0.62 and d = 0.38. For tasting, the allele frequencies are T =0.76 and t = 0.24.
   1. Determine the genotype frequencies for each gene.
   2. What are the expected frequencies of the four possiblephenotype combinations: dimpled tasters, undimpled tasters, dimplednontasters, and undimpled nontasters?

1. The resting membrane potential of skeletal muscle is about-90mV while in a typical neuron it is about -65 mV. Knowing whatthe resting membrane potential depends on, what activities might bedifferent in the muscle cell that could make its resting potentialmore negative than the neuron

What effect does lying down have on the minute volume (the totalamount of air breathed into the lungs in a minute)?

If the tidal volume changes due to exercise, can this beaccounted for by changes in the Inspiratory Reserve Volume (IRV),the Expiratory Reserve Volume (ERV), or a combination of both?

glycogen synthase catalyzes glycogen synthesis. determinewhether each of the following are associated with an increase ordecrease in glycogen synthase activity.

Increased glycogen synthase activity:

Decreased glycogen synthase activity:

1) activation of phosphoprotein phosphatase PP1

2) Phosphorylation (inactivation) of phosphoprotein phosphatase1 (PP1) by PKA

3) Subunit dissociation of cAMP-dependent protein kinase(PKA)

4) Phosphorylation of glycogen synthase

5) Insulin

6) Phosphorylation of glycogen synthase kinase (GSK, orGSK3)

Suppose you are purifying a protein on a weak cation exchanger(pH 7.5) and it comes off at 300mM salt. predict what saltconcentraiton (lower, same, higher) the protein would come off ifyou used a strong cation exchanger. Explain the logic behind yourprediction in terms of the differences between a weakand strong exchanger.

make a flowchart of the following:

Lets say you are about to push on a door and keep walking butits too heavy and it doesnt open. however, your body doesnt slowdown. How do reflexes help you?

Assume a hypothetical enzyme hklase is able to break down ahypothetical sugar hklose. Assume that the synthesis of hklase iscontrolled by an operon.

Briefly explain whether youpredict the operon to be an inducible or a repressibleoperon.How would the presenceof hklose effect the transcription of the genes that are involvedin hklose degradation? (For clarity - you need to address the roleof hklose, the repressor, and the operator)

Assume a hypothetical enzyme hklase is able to break down ahypothetical sugar hklose. Assume that the synthesis of hklase iscontrolled by an operon.

1. Briefly explain whether you predict the operon to be aninducible or a repressible operon. - I believe the operon isinducible since the hklase is involved in a catabolic pathway.
2. How would the presence of hklose effect the transcription ofthe genes that are involved in hklose degradation? (For clarity -you need to address the role of hklose, the repressor, and theoperator). - I am confused with how the presence of the sugaraffects the gene transcription. What are the repressors and theoperators in this particular event?

Assume a hypothetical enzyme hklase is able to break down ahypothetical sugar hklose. Assume that the synthesis of hklase iscontrolled by an operon. Briefly explain whether you predict theoperon to be an inducible or a repressible operon. How would thepresence of hklose effect the transcription of the genes that areinvolved in hklose degradation? (For clarity - you need to addressthe role of hklose, the repressor, and the operator)

Assume a hypothetical enzyme hklase is able to break down ahypothetical sugar hklose. Assume that the synthesis of hklase iscontrolled by an operon.

1. Briefly explain whether you predict the operon to be aninducible or a repressible operon.
2. How would the presence of hklose effect the transcription ofthe genes that are involved in hklose degradation? (For clarity -you need to address the role of hklose, the repressor, and theoperator)

Calculate the number of repetitions of the ?-oxidation pathwayrequired to fully convert a 12-carbon activated fatty acid toacetyl-SCoA molecules.

_____________ repetitions

Calculate the number of acetyl-SCoA molecules generated bycomplete ? oxidation of a 12-carbon activated fatty acid.

_____________ acetyl-SCoA

1. Define and discuss osteoporosis.Include in your discussion information on how osteoporosisdevelops; how age, sex, hormones, and genetics affect it; howactivity affects it; and what dietary interventions can helpprevent or treat osteoporosis.
   
2. Explain the difference between heme and nonheme iron. How canthe efficiency of absorption be increased for both types ofiron?

Which of these do you think would have the most severe effect ondigestion: surgical removal of the stomach, pancreas, orgallbladder? Explain your choice

The following data come from an undisclosed area of the globe.Your mission, "should
you choose to accept it", is to determine where this climatologicaldata set originated.
1. For these data please construct an accurate climate diagram (12pts)

2. Identify the biomedepicted by this climate diagram (2pt).

Month Temperature Precipitation
January 33 0 mm
February 31 2
March 31 3
April 30 6
May 26 9
June 19 12
July 16 14
August 15 15
September 20 4
October 26 3
November 30 1
December 32 0

Assume these data were collected on the 120 degrees EastMeridian.

3. What country (2 pt) and what specificgeological/landscape/biome feature (2 pt) do these datarepresent?
4. Describe some adaptations that you would expect in the flora ofthis biome (2 pt).

Why does the concentration of urea increase in the proximaltubule yet the concentrations of Na, Cl and K stay essentially thesame?

Relative to the genetic code, the histone code

Relative to the genetic code, the histone code

An important difference between the ways that bacteria andmulticellular eukaryotes regulate gene expression is that______.

An important difference between the ways that bacteria andmulticellular eukaryotes regulate gene expression is that______.

Why do neurons have membrane bound organelles? Why do axons anddendrites need some organelles?

Atomic Structure

flashbulb memory

types of attention

gestalt psychology

perception definition

piaget assimilation

social power

psychiatrist education

life cycle