Questions
Calculate Brunt-Vaisala Frequency for a neutrally stable dry atmosphere

Calculate Brunt-Vaisala Frequency for a neutrally stable dry atmosphere

In: Physics

1)Vitamin A and pro-vitamin A are molecules that contain only carbon and hydrogen atoms and do...

1)Vitamin A and pro-vitamin A are molecules that contain only carbon and hydrogen atoms and do not have any amino acids. If scientists want to genetically engineer a plant to make pro-vitamin A, what type of gene or genes would the scientists need to insert in the plant cells? Would they insert a gene that codes for pro-vitamin A? If not, what type of molecule would the gene or genes have to code for? Explain your reasoning.

2)Scientists have identified genes for two enzymes needed to make pro-vitamin A. One of these genes comes from corn. If this gene from a corn plant is inserted in the DNA of a rice plant, will the sequence of amino acids in the protein produced by the rice plant be the same as the sequence of amino acids in the protein produced by the corn plant? In other words, will rice plants that have this gene produce the same enzyme as corn plants produce? Explain why or why not.

3)Once scientists have identified the genes for enzymes to produce provitamin A, how could they insert these genes in the DNA of rice plant cells? Suggest one possibility.


4)Would you recommend that scientists try to insert the genes for enzymes to produce pro-vitamin A into:

a. all the cells in a rice plant

b. the thousands of cells in each rice grain or

c. a small group of embryonic rice plant cells that can divide and develop into a rice plant?

Explain your reasoning.

5) To insert genes from one organism into a different organism, scientists often take advantage of the natural genetic engineering capabilities of bacteria or viruses. One type of bacteria genetically engineers plant cells by inserting part of its bacterial DNA into the plant cell DNA, thus producing recombinant DNA. The inserted bacterial genes code for proteins that:

  • stimulate the genetically engineered plant cells to produce food molecules that only the bacteria can use
  • stimulate these genetically engineered plant cells to divide and form a growth that bulges out from the stem or root.

Explain how this type of genetic engineering is useful for the bacterium.

In: Biology

Many laws govern the physical universe (e.g. Newton's Universal Law of Gravity or Kepler's Laws of...

Many laws govern the physical universe (e.g. Newton's Universal Law of Gravity or Kepler's Laws of Planetary Motion) and can be expressed mathematically. Do you believe that mathematics is inherently part of the universe, or do you believe that mathematics is simply a tool we have developed to model behavior of objects in our universe? Another way of thinking of this issue is the following: why should the universe allow us to describe it mathematically?

In: Physics

Imagine that a polluter starts dumping sodium chloride into Lake Charles at a rate of 1437.3...

Imagine that a polluter starts dumping sodium chloride into Lake Charles at a rate of 1437.3 kg per day, that the background concentration of NaCl in the lake was 11.3 ppm, and that the residence time of NaCl in the lake is 3.5 years. After 5 years, the Environmental Protection Agency catches on and turns off this source of NaCl. What would be the maximum concentration of NaCl in the lake? Please give your answer in ppm. Lake Charles has a volume of 1.8*107 m3.

In: Chemistry

equal volumes of solutions of the given concentrations are mixed together. which of the resulting aqueous...

equal volumes of solutions of the given concentrations are mixed together. which of the resulting aqueous solutions makes a buffer?

In: Chemistry

Calculate the missing items in the following. Enter all numbers as positive values. Sales Sales Returns...

Calculate the missing items in the following. Enter all numbers as positive values.



Sales

Sales Returns and Allowances


Net Sales

Beginning Merchandise Inventory


Net Purchases

Cost of Goods Available for Sale

Ending Merchandise Inventory


Cost of Goods Sold


Gross Profit
a. $242,000   $6,000   236000 $152,000   $170,000   $  322000 $136,000         $186,000   $  ? ( it's not $56000)
b. 304,000     7000 297,000   134,000     270000 404,000   176,000         228,000     ? (it's not $76000)
c.   638000 10,000   628,000     70000 416,000   486,000   89,000           397000   ? (it's not $241000)

In: Accounting

Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5...

Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 13 m/s at an angle 52 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground.

1.What is the maximum height the ball goes above the ground?

2. After catchingt he ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance of 1.5 meters above the grounf, and is moving with a speed of 10m/s when it reaches maximum height of 8m above the ground. Wat is the speed of the ball when t leaves Sarah's hand?

3.How high above the ground will the ball be when it gets to Julie?

In: Physics

fluid moving into the brain after a traumatic brain injury can result in swelling of the...

fluid moving into the brain after a traumatic brain injury can result in swelling of the brain. what type of solution(hypertonic, isotonic, hypotonic)would doctors use to relieve the swelling. why. 5 marks

In: Biology

Define multihit hypothesis. A complete definition will include the following (4pts): ·Define the term “hit”.(1) Accumulation...

Define multihit hypothesis. A complete definition will include the following (4pts):

·Define the term “hit”.(1)

Accumulation of mutations in genes that control cell cycle, apoptosis, and cell migration in a adult stem cell.

·Define how many hits normally will cause a cell to become cancer.(1)

·Explain the type of cell that normally becomes a cancer cell and why.(1)

·Finally, make sure to explain the importance of time in a cell becoming a cancer cell.(1)

In: Biology

Write at least one paragraph with a minimum of 100 words on the Tang Dynasty period...

Write at least one paragraph with a minimum of 100 words on the Tang Dynasty period in China and why that period was considered the “Flowering of the Chinese Civilization.” Include a look at the inventions, the literature (poetry) and interaction with other cultures in your discussion.

In: Economics

C++ How can I print out the subtrees in my self-balancing tree? What I would like...

C++ How can I print out the subtrees in my self-balancing tree? What I would like to do is have it display something like " ROOT = X, LEFT PARENT = X, X,X, RIGHT PARENT = X,X,X.

Here is my code:

#include <iostream>
using namespace std;


class TreeNode
{
public:
   int data;
   TreeNode* left;
   TreeNode* right;
};

TreeNode* newNode(int data);

/* A function that constructs Balanced
Binary Search Tree from a sorted array */
TreeNode* convertToBTS(int arr[],
   int start, int end)
{
  
   if (start > end)
       return NULL;

   //make the middle number the root
   int mid = (start + end) / 2;
   TreeNode *root = newNode(arr[mid]);

  
   root->left = convertToBTS(arr, start,
       mid - 1);

  
   root->right = convertToBTS(arr, mid + 1, end);

   return root;
}

/* Helper function that allocates a new node
with the given data and NULL left and right
pointers. */
TreeNode* newNode(int data)
{
   TreeNode* node = new TreeNode();
   node->data = data;
   node->left = NULL;
   node->right = NULL;

   return node;
}

//The array will be sorted in PreOrder
void preOrder(TreeNode* node)
{
   if (node == NULL)
       return;
   cout << node->data << " ";
   preOrder(node->left);
   preOrder(node->right);
}

int main()
{
  
   const int SIZE = 7;
   int arr[SIZE];
   int count = 7, num = 0;

   cout << "We will construct a Self-Balancing Tree!\n Enter 6 numbers for the nodes." << endl;

   for (int i = 0; i < SIZE; i++)
   {
       cout << "Enter " << count << " more items!" << endl;      
       cin >> arr[i];
       count--;
   }

   int n = sizeof(arr) / sizeof(arr[0]);

   /* Convert List to BST */
   TreeNode *root = convertToBTS(arr, 0, n - 1);
   cout << "The tree will be displayed in PreOrder!" << endl
       << "First number will be the ROOT. Then LEFT SUBTREE, and RIGHT SUBTREE." << endl;
   preOrder(root);

   return 0;
}

In: Computer Science

Describe how the Rational User Process can accommodate agile process. Specify in what phases and what...

Describe how the Rational User Process can accommodate agile process. Specify in what phases and what disciplines agile methods could be appropriate.

In: Computer Science

You are the lead auditor performing a walkthrough of the bank reconciliation performed by the company...

You are the lead auditor performing a walkthrough of the bank reconciliation performed by the company controller. What is the design deficiency of the control below ? What additional steps should the Controller perform ?

The Controller says, "I first review the sorted list of returned checks and find which numbers are missing. Second I determine the amount uncleared checks by referring to the cash disbursements journal. If the bank accounts reconcile at that point, the review is done. If it does not reconcile I search for in transit deposits, checks from the beginning outstanding checks list that still have not cleared, other reconciling items and bank errors until it reconciles."

In: Accounting

5. In recent years, about twenty states have passed so-called medical marijuana laws. Typically, these laws...

5. In recent years, about twenty states have passed so-called medical marijuana laws. Typically, these laws permit individuals to lawfully purchase marijuana from licensed stores, providing they have a letter from their doctor recommending its uses. In a number of these states, the price of medical marijuana is observed to be higher than that of the pot sold illegally just down the street. Use the reasoning in this chapter to explain (a) why people would be willing to pay a higher price for the medical marijuana, and (b) why it might be misleading to compare the observed price of the medical variety with the observed price of the illegal weed.

In: Economics

What roles does HRM perform relative to each international business strategy of ethnocentric, geocentric and polycentric...

What roles does HRM perform relative to each international business strategy of ethnocentric, geocentric and polycentric staffing models?

In: Operations Management