In an organism, 4n=100. the haploid and monoploid number of chromosomes in this organism will be

Options

A. 25 & 25
B. 25 & 50
C. 50 & 25
D. 50 & 50

Answer

To solve the problem regarding the haploid and monoploid numbers of chromosomes in an organism where 4n = 100, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Given Information**:
- The notation "4n = 100" indicates that the organism is tetraploid (having four sets of chromosomes).
- Here, "n" represents the monoploid number, which is the number of chromosomes in a single set.

2. **Calculate the Monoploid Number (n)**:
- Since 4n = 100, we can find n by dividing both sides of the equation by 4.
- Calculation:
\[ n = \frac{100}{4} = 25 \]
- Therefore, the monoploid number (n) is 25.

3. **Calculate the Haploid Number (n)**:
- The haploid number (which is also represented as n) is the same as the monoploid number when dealing with polyploid organisms.
- In this case, since we have already calculated n, we can conclude that the haploid number is also 25.

4. **Determine the Diploid Number (2n)**:
- To find the diploid number (2n), we can simply multiply the monoploid number by 2.
- Calculation:
\[ 2n = 2 \times 25 = 50 \]
- Thus, the diploid number is 50.

### Final Answers:
- **Monoploid Number (n)**: 25
- **Haploid Number (n)**: 25