Chromosomal constitution inn human femal can best be written as

Options

A. 46
B. 44+2
C. 44A+XY
D. 44A+XY

Answer

To determine the chromosomal constitution in a human female, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Total Chromosome Count**:
- Humans have a total of 46 chromosomes. This includes both sex chromosomes and autosomes.

2. **Identify the Types of Chromosomes**:
- The 46 chromosomes consist of 22 pairs of autosomes (non-sex chromosomes) and 1 pair of sex chromosomes.

3. **Determine the Chromosomal Composition for Females**:
- In females, the sex chromosomes are represented as XX. Therefore, the chromosomal constitution for a human female includes two X chromosomes.

4. **Combine Autosomes and Sex Chromosomes**:
- Since there are 22 pairs of autosomes, this means there are 44 autosomes in total (22 pairs x 2 = 44).
- Adding the sex chromosomes (XX) gives us a total of 46 chromosomes: 44 autosomes + 2 sex chromosomes (XX).

5. **Express the Chromosomal Constitution**:
- The chromosomal constitution for a human female can be expressed as 44 + XX.

### Final Answer:
The chromosomal constitution in a human female can best be written as **44 + XX**.

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