Questions
A) Use the differences in stem morphology, primary and secondary growth to explain why eudicots are...

A) Use the differences in stem morphology, primary and secondary growth to explain why eudicots are also called woody plants. B) Why do trees die when the bark is removed from the circumference of the tree?

In: Biology

Kate is born with features that do not look quite normal. Her eyes are wide-set and...

Kate is born with features that do not look quite normal. Her eyes are wide-set and slightly slanted. Her nose is short and flat, and she keeps her mouth slightly open. There is a straight crease across her palm, and her fifth digit is unusually short. The doctor tells her parents she has an inherited disorder. If you were the doctor what would you diagnosis Kate with? Discuss the etiology of Kate’s disorder? What is the biggest risk factor for this disorder? How can or will this disorder affect Kate? What test could have been completed to diagnosis this disorder before Kate’s birth?

In: Biology

A 75-year-old man is admitted to the hospital for a severe urinary tract infection. A catheter...

A 75-year-old man is admitted to the hospital for a severe urinary tract infection. A catheter is put in place and he is given a regimen of the appropriate antibiotics. The infection initially begins to respond to the antibiotics as the bacterial count of the urine sample shows a decrease in number. After a number of days in the hospital with the catheter still in place the bacterial numbers begin to rise again Assuming the type of antibiotic and the initial dosage was correct, what may be the explanation for the resurgence of the infection? What action(s) may be taken to bring the infection back under control without radically changing the antibiotic treatment in place?

In: Biology

Question (2) Which of the following histology stains is/are used to highlight glycosaminoglycans in tissue sections...

Question (2) Which of the following histology stains is/are used to highlight glycosaminoglycans in tissue sections

  1. Alcian Blue
  2. Millers elastin
  3. Massons trichrome
  4. Haematoxylin
  5. Trypan blue

In: Biology

what is transposon methylation in plants, how does this occur and what is the effect the...

what is transposon methylation in plants, how does this occur and what is the effect the phenotype of plants and further what is the effects this has on darwinian selection?

In: Biology

Amniotic Fluid Stem Cells (AFCS) though classified as adult stem cells have a remarkable ability to...

Amniotic Fluid Stem Cells (AFCS) though classified as adult stem cells have a remarkable ability to make a multitude of cell lineages from all 3 germ layers. What are 3 arguments for considering it pluripotent? Why is it correctly categorized as “broadly multipotent”?

In: Biology

Could new mutations or diseases arise through IVP, CRISPR, or PGD?

Could new mutations or diseases arise through IVP, CRISPR, or PGD?

In: Biology

For eạch of the following, indicạte whạt the effect would be on the EFG/Rạs signạling pạthwạy...

For eạch of the following, indicạte whạt the effect would be on the EFG/Rạs signạling pạthwạy (increase or decrease) and why.

a. A destạbilizing mutạtion in the SH2 domain of Grb2.

b. Overexpression of Rạs associated GAP’s.

c. Introduction of GTPγS (a GTP ạnalog that is difficult to hydrolyze)

d. Overexpression Sos

In: Biology

How do nerves contribute to the regulation of osmoregulation? How do muscles contribute to the regulation...

How do nerves contribute to the regulation of osmoregulation?

How do muscles contribute to the regulation of osmoregulation?

How does cell signalling contribute to the regulation of Osmoregulation?

In: Biology

A detailed description of the technology based on the solution .   A description on how it...

A detailed description of the technology based on the solution .  

A description on how it will impact climate change.  

A thorough discussion as to whether implementation of this technology is feasible. Pros and Cons to it.

Answer the question as to whether this technology can significantly reduce or reverse the momentum of climate change by 2050?

Solution is below

Conservation agriculture uses cover crops, crop rotation, and minimal tilling in the production of annual crops. It protects soil, avoids emissions, and sequesters carbon.

SOLUTION SUMMARY*

Plows are absent on farms practicing conservation agriculture, and for good reason. When farmers till their fields to destroy weeds and fold in fertilizer, water in the freshly turned soil evaporates. Soil itself can be blown or washed away and carbon held within it released into the atmosphere. Tilling can make a field nutrient poor and less life-giving.

Conservation agriculture was developed in Brazil and Argentina in the 1970s, and adheres to three core principles:

  1. Minimize soil disturbance: absent tilling, farmers seed directly into the soil.
  2. Maintain soil cover: farmers leave crop residues after harvesting or grow cover crops.
  3. Manage crop rotation: farmers change what is grown and where.

The Latin root of conserve means “to keep together.” Conservation agriculture abides by these principles to keep the soil together as a living ecosystem that enables food production and helps redress climate change.

Conservation agriculture sequesters a relatively small amount of carbon—an average of half a ton per acre. But given the prevalence of annual cropping around the world, those tons add up. Because conservation agriculture makes land more resilient to climate-related events such as long droughts and heavy downpours, it is doubly valuable in a warming world.

the technology mentioned in the solution


before the solution is below is the question

In: Biology

a) Consider a person of 70 Kg. 0.20% of the body mass is potassium and it...

a) Consider a person of 70 Kg. 0.20% of the body mass is potassium and it is a vital nutrient. Natural potassium (mostly 39K and 41K) also contains 0.012% 40K with a half- life time of 1.3 billion years. 40K emits a β- of average energy of 58.5 keV in 89.3% of its decays and a 1.461 MeV γ-ray in 10.7% of the decays. How many of these high-energy γ-rays is generated in the person per second?

b) If you assume that all the energy from the electrons and γ-rays is absorbed in the body, what is the effective dose for the person in one year?

c) While nowadays 0.012% of all potassium is 40K, what was its share of all potassium 4.5 billion years ago, when the Earth formed?

In: Biology

Explain how reverse transcriptase causes resistance to the viral protease inhibitor ritonavir

Explain how reverse transcriptase causes resistance to the viral protease inhibitor ritonavir

In: Biology

What was the significance of the 1944 Avery-MacLeod-McCarty experiment? How are the discoveries of that experiment...

What was the significance of the 1944 Avery-MacLeod-McCarty experiment? How are the discoveries of that experiment a significant contribution to the field of biotechnology?

In: Biology

ln genetics, what are the biological effects of radiation in humans ?

ln genetics, what are the biological effects of radiation in humans ?

In: Biology

What would happen if we use Polymerase I instead of Polymerase III for DNA replication in...

What would happen if we use Polymerase I instead of Polymerase III for DNA replication in a PCR? If we used an enzyme with low fidelity, how would the DNA product compare to the original template?

In: Biology