Triticum aestivum (Bread wheat) is

Options

A. triploid with 21 chromosomes
B. hexaploid with 42 chromosomes
C. tetraploid with 30 chromosomes
D. diploid with 14 chromosomes

Answer

### Step-by-Step Solution:

1. **Identify the Scientific Name**: The question refers to "Triticum aestivum," which is the scientific name for bread wheat.

2. **Determine the Type of Organism**: Bread wheat is classified as a genetically modified organism (GMO). This means it has been altered through genetic engineering techniques.

3. **Understand the Ploidy Level**: The term "ploidy" refers to the number of sets of chromosomes in a cell. Bread wheat is known to have a hexaploid condition.

4. **Identify the Chromosome Count**: In the hexaploid condition, bread wheat has a total of 42 chromosomes. This is derived from its three sets of chromosomes, each containing 14 chromosomes (3 x 14 = 42).

5. **Evaluate the Options**: The options provided in the question include:
- A. Triploid (3 sets of chromosomes, 21 total)
- B. Hexaploid (6 sets of chromosomes, 42 total)
- C. Tetraploid (4 sets of chromosomes, 28 total)
- D. Diploid (2 sets of chromosomes, 14 total)

6. **Select the Correct Answer**: Based on the information, the correct answer is B, which states that Triticum aestivum is hexaploid with 42 chromosomes.

### Final Answer:
**Triticum aestivum (Bread wheat) is hexaploid with 42 chromosomes.**

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