_________are parts of DNA that are passed from parents to their offsprings

Options

A. Genes
B. DNA
C. Chromosomes
D. Centrosomes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the parts of DNA that are passed from parents to their offspring.

2. **Identifying the Options**: The options provided are:
- A) Gene
- B) DNA
- C) Chromosome
- D) Thrombosome

3. **Defining Offspring**: Offspring refers to the children or the next generation that inherit characteristics from their parents.

4. **Understanding DNA Structure**: DNA is a molecule that contains the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms. It is structured in a helical form.

5. **Identifying the Role of Genes**: Within the DNA, there are small segments called genes. Each gene is responsible for controlling specific traits or characteristics of an organism.

6. **Understanding Chromosomes**: DNA condenses to form structures called chromosomes, which are rod-like structures found in the nucleus of cells. Chromosomes contain many genes.

7. **Eliminating Incorrect Options**:
- **DNA** itself is the entire molecule, not a part that is passed down.
- **Chromosomes** are structures made up of DNA and contain many genes, but they are not the specific parts that transfer traits.
- **Thrombosome** is not a recognized term in genetics.

8. **Conclusion**: The correct answer is **A) Gene**, as genes are the specific parts of DNA that are passed from parents to offspring and determine inherited traits.

**Final Answer**: **Genes are parts of DNA that are passed from parents to their offspring.**

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