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In Drosphila female has a pair of chromo...

In Drosphila female has a pair of chromosomes

A

ZZ

B

XX

C

YY

D

ZW

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Drosophila Chromosomes**: Drosophila, commonly known as fruit flies, have a total of four pairs of homologous chromosomes. This includes both autosomes and sex chromosomes. 2. **Identifying Chromosome Types**: Among the four pairs, two pairs are large autosomal chromosomes, one pair is small autosomal chromosomes, and one pair consists of sex chromosomes. 3. **Determining Female Chromosomes**: In Drosophila, the sex of the organism is determined by the type of sex chromosomes present. Female Drosophila have two X chromosomes (XX), while male Drosophila have one X and one Y chromosome (XY). 4. **Conclusion**: Therefore, the pair of chromosomes present in female Drosophila is XX. 5. **Selecting the Correct Option**: Based on the options provided (ZZ, XX, YY, or ZW), the correct answer is XX. **Final Answer**: The pair of chromosomes in female Drosophila is **XX**. ---
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