1. Fill in the table below concerning chromatin modification.

2.Describe how X-chromosome inactivation occurs.

3.Outline the process of RNA interference (RNAi). Note the two types of small RNA molecules typically involved, as well as the three possible outcomes. Be able to define the following: Dicer, RISC, guide strand, passenger strand.

4.Review the three epigenetics case studies we discussed. Briefly discuss one of them here.

Ill rate you HIGH

Topic Genetics

PART A - Which of the following represents a state of matter?

- volume

- solid

- melting point

- density

PART B - What types of atoms make up hydrogen peroxide?

PART C - Which of the following statements is TRUE?

- Hydrogen peroxide can be used as a drink and can be used to bathe in. - Both water and hydrogen peroxide are stable molecules. - Hydrogen peroxide is smaller than water. - Hydrogen peroxide is used as rocket fuel and removes color from hair.

PART D - What does Dalton's Atomic Theory say?

- the properties of matter are determined by the properties of atoms - matter is composed of small indestructible particles - energy is neither created nor destroyed during a chemical reaction - an atom is predominantly empty spacean atom is predominantly empty space

Please answer the following

1) Which of the following techniques employs a probe consisting of a labeled, single-stranded DNA of known sequence that can find and bind to a complementary sequence present in a large sample of different DNA sequences?

a- RFLP

b- DNA sequencing

c- DNA hybridization

d- PCR

2) Which repair pathway removes a normal base that was incorrectly paired with the template base during DNA synthesis?

a- recombination

b- base excision pair

c- SOS repair

d- methyl mismatch repair

3) At the end of translation initiation in bacteria,

a- the fMet tRNA is in the P site of the 70S ribosome.

b- the fMet tRNA is in the A site of the 70S ribosome.

c- RNA polymerase has escaped the promoter, leaving the sigma behind.

Supply and Demand: In early 2020 the COVID-19 pandemic swept across the nation and world. In response, many workers moved from in-person working to remote working.
Webcams in particular showed an increase in the amount sold, especially the most well-known and trusted brands.

a. Most webcams are produced in China. The US is currently in a trade war with the Chinese which effectively causes additional costs on the production of Chinese goods through tariffs (i.e., taxes). Suppose after the next election, the US abandons the trade war and removes the tariffs. What effect should that have on the price of webcams?   

b. Logitech claims that it is ramping up capacity but is working to “overcome component shortages.” Using an elasticity of supply argument,explain what Logitech is claiming here. Do you expect that to last indefinitely?

public class StringNode {

      private String item;
      private StringNode next;
}


public class StringLL {

      private StringNode head;
      private int size;

      public StringLL(){
            head = null;
            size = 0;
      }

      public void add(String s){
           add(size,s);
      }

      public boolean add(int index, String s){
        ...
     }

      public String remove(int index){
        ...
      }
}

In the above code add(int index, String s) creates a StringNode and adds it to the linked list at position index, and remove(int index) removes the StringNode at position index.

Which cases does add(index,s) need to consider? and

Complete the next code fragment in remove(int index) that locates the predecessor of the node to be removed.

            // locate predecessor
            curr = head;
            for(

                                                              ){

                  curr=curr.getNext();

            }

CS 209 Data Structure

3.

a. Create a class named Point3D that contains 3 instance variables x, y, and z.

b. Create a constructor that sets the variables. Also, create get and set methods for each variable.

c. Create a toString() method.

d. Make Point3D implement Comparable.

Also, create a compareTo(Point3D other) method that compares based on

the x-coordinate, then y-coordinate for tiebreakers, then z-coordinate for tiebreakers.

For example, (1, 2, 5) comes before (2, 1, 4), which comes before (2, 2, 3), which comes before (2, 2, 4).

e. Create a TreeSet of Point3D and insert a few elements including duplicates.

Verify that the TreeSet removes all the duplicates.

Also verify that the TreeSet orders the elements properly.

An activated sludge plant receive 5.0 MGD of wastewater with a BOD of 220 mg/L. The primary clarifier removes 35% of the BOD. The sludge is aerated for 6 hr. The food-to-microorganism ratio is 0.30. The recirculation ratio is 0.2. The surface loading rate of the secondary clarifier is 800 gal/day-ft2. The final effluent has a BOD of 15 mg/L. What are the (a) BOD removal efficiency of the activated sludge treatment processes (secondary BOD removal), (b) aeration tank volume, (c) MLSS, and (d) secondary clarifier surface area? If 0.5 pound of oxygen is required for each pound of BOD entering the aeration tank and the density of air is approximately 0.075 lb/ft3, and the air is 20.9% oxygen by volume, calculate air requirements per day.

This question is based on the general equilibrium analysis.

Suppose the world consists of two large countries - the U.S. and Mexico - which trade with one another. Both countries produce and consume two goods: cars (C) and textiles (T). The U.S. has a comparative advantage in the production of cars. Initially, the U.S. has no tariffs, but Mexico has a 10% tariff on its imports. In 1995, NAFTA (a free trade agreement) is implemented, and Mexico removes its tariff. What are the implications of NAFTA for the U.S.? First explain what happens to production and consumption of cars and textiles in the U.S. Support your answer with a PPF graph that shows the U.S. equilibrium both before and after the implementation of NAFTA (plot C on the x-axis). Second, could the U.S. economy be hurt by NAFTA? Explain.

Could I please get explainations and working out as to how to get to the answers.

Note that  is where part of the answer goes.

1.

Write a statement that removes the first occurrence of item 10 (if any) from an ArrayList of Integer objects, data.

data.remove(  );

2.

Complete the following function that returns true if ArrayList list contains any positive (more than 0) item, false otherwise.

public static  containsPositive(ArrayList list) {

for(int i=0; i < list.size(); i++) {

if(    ) {

 ; }

}  ; }

3.

Consider the following list:

ArrayList list = new ArrayList(Arrays.asList(10, 70, 20, 90, 30, 80, 50, 40, 60));

Complete the following code that gives the following output:

20 90 30 80 50 40 60

 <interger> iter = list.listIterator(  );

while(iter.  ) {

System.out.println(  +" ");

}

The Game of Pit is really fun because there are no turns. People shout out bids at random, chaotically. Here is a slightly simplified version of the game:

There are four suits, Wheat, Barley, Corn and Rye, with nine cards each, 36 cards in all. There are four players. At the opening, the cards are all dealt out, nine to each player. The players hide their cards from each other’s sight.

Players then start trading. In computer science terms, trading is asynchronous, no turns; a player can bid at any time. The only rule is that a trade must be homogeneous in suit, e.g. all Rye. (The player trading Rye need not trade all the Rye he has, though.) The player bids by shouting out the number she wants to trade, say “2!” If another player wants to trade two cards (again, homogeneous in suit), she yells out, “OK, 2!” and they trade. When one player acquires all nine of a suit, he shouts “Corner!”

Consider the situation at the time the cards have just been dealt. Imagine that you are one of the players, and Jane is another. Find the following probabilities:

(a) P(you have no Wheats). (b) P(you have seven Wheats).

(c) P(Jane has two Wheats — you have seven Wheats).
(d) P(you have a corner) (note: someone else might too; whoever shouts it out first wins).