The image contains a list of biology questions in Khmer script. I will solve question VIII. m. The question asks: A DNA molecule is used as a template. If each $ARN_m$ molecule has an average of $10^4$ nucleotides, how many $ARN_m$ molecules are required? It is known that a single strand of a DNA molecule has $3 \times 10^4$ nucleotides.

1. Problem Description

The image contains a list of biology questions in Khmer script. I will solve question VIII. m.

The question asks: A DNA molecule is used as a template. If each $ARN_m$ molecule has an average of $10^4$ nucleotides, how many $ARN_m$ molecules are required? It is known that a single strand of a DNA molecule has $3 \times 10^4$ nucleotides.

2. Solution Steps

First, the number of nucleotides in a single strand of ADN is given by $3 \times 10^4$.

When the ADN molecule is used as a template to produce ARN, the number of nucleotides in the ARN will be equal to the number of nucleotides in the ADN strand.

The number of nucleotides in $ARN_m$ is equal to $3 \times 10^4$.

Each $ARN_m$ molecule has $10^4$ nucleotides.

To find the number of $ARN_m$ molecules, we divide the total number of nucleotides in $ARN_m$ by the number of nucleotides per $ARN_m$ molecule.

Number of $ARN_m$ molecules $= \frac{3 \times 10^4}{10^4} = 3$

3. Final Answer

The number of $ARN_m$ molecules required is 3.