There is no DNA in

Options

A. mature RBC.
B. mature spermatozoan
C. root hair
D. antipodal cells.

Answer

To solve the question "There is no DNA in", we need to analyze the options provided:

1. **Mature RBC (Red Blood Cell)**:
- Mature red blood cells are unique in that they do not contain a nucleus. During their maturation process, they expel their nucleus to maximize space for hemoglobin, the protein responsible for oxygen transport. Since DNA is housed within the nucleus, mature RBCs do not contain any DNA.

2. **Mature Spermatozoon**:
- Mature sperm cells do contain DNA. They have a nucleus that carries genetic information, which is important for fertilization.

3. **Root Hair**:
- Root hairs are extensions of root epidermal cells and contain a nucleus, thus they have DNA.

4. **Antipodal Cells**:
- Antipodal cells are part of the embryo sac in flowering plants and also contain a nucleus, hence they have DNA.

Based on the analysis, the only option that does not contain DNA is:

**Answer: A. Mature RBC**

### Step-by-Step Solution:
1. Identify the options given in the question.
2. Analyze each option to determine the presence of DNA.
3. Conclude that mature RBCs do not have DNA due to the absence of a nucleus.