Yes, you can choose Zoology as an optional subject if you have a background in Veterinary Science. Both fields are closely related and share many common topics and concepts. Here's a detailed explanation of why you can choose Zoology as an optional subject:

1. Similarities between Zoology and Veterinary Science:
- Both Zoology and Veterinary Science deal with the study of animals, their anatomy, physiology, behavior, and diseases.
- Both fields require a strong understanding of animal biology and involve working with various animal species.
- The knowledge and skills gained in Veterinary Science can be directly applied to Zoology and vice versa.

2. Overlapping topics:
- Many topics in Zoology and Veterinary Science overlap, such as animal nutrition, reproduction, genetics, and ecology.
- Your background in Veterinary Science will provide you with a solid foundation in these topics, making it easier for you to grasp the concepts in Zoology.
- Studying Zoology will further deepen your understanding of animal biology and broaden your perspective on various animal species.

3. Career opportunities:
- Having a background in both Veterinary Science and Zoology can open up a wide range of career opportunities for you.
- You can work as a veterinarian, animal researcher, wildlife biologist, conservationist, zoologist, or even pursue academic and research positions in both fields.
- The combination of these two disciplines will give you a unique skill set and a competitive edge in the job market.

4. Syllabus and preparation:
- Before choosing Zoology as an optional subject, it is essential to thoroughly go through the syllabus and understand the topics covered.
- Evaluate your familiarity with the subjects mentioned in the syllabus, as your background in Veterinary Science will give you an advantage in tackling some of these topics.
- Plan your preparation strategy accordingly, focusing on areas where you may need more practice or additional study materials.

Conclusion:
In conclusion, you can definitely choose Zoology as an optional subject if you have a background in Veterinary Science. The overlapping topics, similarities between the two fields, and the wide range of career opportunities that open up make it a suitable choice. However, it is important to carefully evaluate the syllabus and plan your preparation strategy accordingly.