However, I can provide you with some tips to improve your marks in biology in Allen test series.

1. Understand the basics: The first step to improving your marks in biology is to understand the basics. Make sure you have a good understanding of the concepts, definitions, and terminology used in the subject.

2. Practice regularly: Practice makes perfect, and this applies to biology as well. Make a habit of solving questions on a regular basis. You can use test series and sample papers for this purpose.

3. Revise regularly: Biology is a subject that requires regular revision. Make sure you revise the topics you have studied regularly. This will help you retain the information and improve your understanding of the subject.

4. Analyze your mistakes: Whenever you take a test or solve a question paper, make sure you analyze your mistakes. Identify the areas where you are weak and work on improving them.

5. Use study materials: There are many study materials available online and offline that can help you improve your marks in biology. You can use textbooks, reference books, and online resources for this purpose.

6. Seek help: If you are stuck on a particular topic or concept, don't hesitate to seek help. You can ask your teachers, friends, or online communities for help.

7. Stay motivated: Biology can be a challenging subject, but don't let that demotivate you. Stay motivated and keep working hard. With perseverance and dedication, you can improve your marks in biology.

In conclusion, improving your marks in biology requires a combination of understanding the basics, regular practice, revision, analysis of mistakes, use of study materials, seeking help, and staying motivated. Follow these tips consistently, and you will see improvement in your marks.

Allen test paper questions are ncert based or a little bit conceptual(i am talking of major tests).major test paper question are just of same level as that of neet specially in biology, minor test questions are prepared mostly by the teachers who teach you.so you should read ncert , and module(only for selected topics),so that you can increase your biolgy score.and in order to gain good marks, you need to clear ur concepts, so either join reclasses or go for doubt clearing counter and study one topic from the teacher ,(and first clear those topics in which you are 0)so you can add up your score.and the key point is select your topic according to csat review)