Random number in C# is not uniformly distributed

I am learning C# to implement Genetic Algorithm. From several execution, I found that the random number did not produce good result, that is the random number is not uniformly distributed.

Here is my code:

class Individual
{
    private int[,] myInd;

    public Individual()
    {
        //
    }

    public Individual(int numberOfChromosomes, int numberOfJobs, int numberOfMachines)
    {
        Random rand = new Random();
        this.myInd = new int[numberOfChromosomes, numberOfJobs];
        int machineid;
        int something;
        for (int i = 0; i < numberOfChromosomes; i++)
        {
            int[] dummy = new int[numberOfJobs];
            if (i == 0)
            {
                for (int j = 0; j < numberOfJobs; j++)
                {
                    dummy[j] = j;
                }
                dummy = Shuffle<int>(dummy);
            }
            else if (i == 1)
            {
                for (int j = 0; j < numberOfChromosomes; j++)
                {
                    //Random rand = new Random();
                    machineid = rand.Next(numberOfMachines);
                    dummy[j] = machineid;
                }
                dummy = Shuffle<int>(dummy);
            }
            else
            {
                for (int j = 0; j < numberOfChromosomes; j++)
                {
                    something = rand.Next(10);
                    dummy[j] = something;
                }
                dummy = Shuffle<int>(dummy);
            }

            for (int j = 0; j < numberOfJobs; j++)
            {
                this.myInd[i, j] = dummy[j];
            }
            dummy = null;
        }
    }//End for Constructor

    public void Show()
    {
        int numberOfChromosomes = this.GetMyInd().GetUpperBound(0);
        int numberOfJobs = this.GetMyInd().GetUpperBound(1);
        for (int i = 0; i <= numberOfChromosomes; i++)
        {
            for(int j = 0; j <= numberOfJobs; j++)
            {
                System.Console.Write(this.GetMyInd()[i, j]);
            }
            System.Console.WriteLine();
        }
    }

    public T[] Shuffle<T>(T[] array)
    {
        Random rand = new Random();
        var random = rand;
        for (int i = array.Length; i > 1; i--)
        {
            // Pick random element to swap.
            int j = random.Next(i); // 0 <= j <= i-1
            // Swap.
            T tmp = array[j];
            array[j] = array[i - 1];
            array[i - 1] = tmp;
        }
        return array;
    }

    public int[,] GetMyInd()
    {
        return this.myInd;
    }

}//End for Individual Class

That zero value occurs more than any other value in one execution. Here is for example.

9360471582
0000002002
0002009009

The second and the third chromosome have a problem with random number. Can you show whats wrong with my code? Thanks. Best regards, Bobby