Questions

Q:

Which of the following has the shortest wavelength?

A) Gamma rays B) Radio waves
C) Microwaves D) Infrared rays
 
Answer & Explanation Answer: A) Gamma rays

Explanation:

Gamma rays has the shortest wavelength and radio waves has the longest wavelength.

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Filed Under: Physics
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Q:

Which of the following statements is most accurate regarding infection with parvovirus B19?

A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors B) Parvovirus B19 can cause hydrops fetalis via transplacental infection of a fetus in a seropositive mother
C) Parvovirus B19 can be diagnosed by detection of viral RNA using PCR or hybridization assays D) Parvovirus B19 replicates in the host cell nucleus utilizing a virally encoded DNA polymerase to create a double- stranded DNA intermediate
 
Answer & Explanation Answer: A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors

Explanation:

Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors.

 

a. Parvovirus B19 binds preferentially to the erythrocyte blood group P antigen on erythroid precursor cells.

Answers B, C, D are incorrect:

b. after entry the single-stranded viral DNA genome is transported to the cell nucleus where the host DNA polymerase synthesizes the complimentary DNA strand.

c. Parvovirus B19 infection can be diagnosed by direct detection of viral DNA not RNA.

d. the fetus of a seropositive mother is protected from infection by maternal circulating antibodies.

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Filed Under: Biology
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Q:

The principle of dominance states that

A) Some alleles are dominant, while others are recessive B) All alleles are recessive
C) All alleles are dominant D) Alleles are neither dominant nor recessive
 
Answer & Explanation Answer: A) Some alleles are dominant, while others are recessive

Explanation:

The principle of dominance states that some alleles are dominant, while others are recessive.

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Filed Under: Biology
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Q:

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
 
They were quite

A- I was fluent in English
B- fascinated, and were quick to
C- remark that they were surprised

A) BAC B) ACB
C) BCA D) ABC
 
Answer & Explanation Answer: C) BCA

Explanation:
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Filed Under: English
Exam Prep: Bank Exams
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Q:

Which year is observed as poverty eradication year by SAARC?

A) 1995 B) 1999
C) 2005 D) 2011
 
Answer & Explanation Answer: A) 1995

Explanation:

The South Asian Association for Regional Cooperation is the regional intergovernmental organization and geopolitical union of nations in South Asia. Its member states include Afghanistan, Bangladesh, Bhutan, India, Nepal, the Maldives, Pakistan and Sri Lanka. The year 1995 is observed as poverty eradication year by SAARC.

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Filed Under: Indian History
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Q:

Anti-emergency day is observed on

A) June 26 B) January 26
C) September 26 D) July 26
 
Answer & Explanation Answer: A) June 26

Explanation:

The government has decided to observe anti-Emergency day on June 25-26 and asked all its ministers to hold programmes across the country to remind people how Emergency was clamped by former Prime Minister Indira Gandhi in 1975.

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Q:

Write a c program for merge sort.

Answer

#include
#define MAX 50

void mergeSort(int arr[],int low,int mid,int high);
void partition(int arr[],int low,int high);

int main(){
  
    int merge[MAX],i,n;

    printf("Enter the total number of elements: ");
    scanf("%d",&n);

    printf("Enter the elements which to be sort: ");
    for(i=0;i<n;i++){
         scanf("%d",&merge[i]);
    }

    partition(merge,0,n-1);

    printf("After merge sorting elements are: ");
    for(i=0;i<n;i++){
         printf("%d ",merge[i]);
    }

   return 0;
}

void partition(int arr[],int low,int high){

    int mid;

    if(low<high){
         mid=(low+high)/2;
         partition(arr,low,mid);
         partition(arr,mid+1,high);
         mergeSort(arr,low,mid,high);
    }
}

void mergeSort(int arr[],int low,int mid,int high){

    int i,m,k,l,temp[MAX];

    l=low;
    i=low;
    m=mid+1;

    while((l<=mid)&&(m<=high)){

         if(arr[l]<=arr[m]){
             temp[i]=arr[l];
             l++;
         }
         else{
             temp[i]=arr[m];
             m++;
         }
         i++;
    }

    if(l>mid){
         for(k=m;k<=high;k++){
             temp[i]=arr[k];
             i++;
         }
    }
    else{
         for(k=l;k<=mid;k++){
             temp[i]=arr[k];
             i++;
         }
    }
  
    for(k=low;k<=high;k++){
         arr[k]=temp[k];
    }
}


Sample output:

Enter the total number of elements: 5
Enter the elements which to be sort: 2 5 0 9 1
After merge sorting elements are: 0 1 2 5 9

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Subject: Programming

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Q:

Though the countries of South - West Asia have abundant power resources, they have not developed major industries mainly because

A) They do not have raw materials B) They do not have a large market
C) They do not have skilled labour D) They do not have capital
 
Answer & Explanation Answer: A) They do not have raw materials

Explanation:
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Filed Under: World Geography

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