EXAM PREPARATION TIPS FOR BIOLOGY CLASS 12th EXAM 2018.
UNIT -1
a)The unit reproduction is thoroughly covered previously in class 10. The basics of the unit are same but certain sections are provided in detail.
b) While preparing for your exams you must focus on the reproduction of flowers. The definition of double fertilization with mechanism is frequently asked in exams.
c) If we talk about human reproduction, the process of reproduction with means of birth control and sex ... ually transmitted diseases should not be missed.
UNIT -2
a) This is one of the most important units in the syllabus. While preparing for the exam you must have complete idea about Mendel and its crosses, post Mendelian genetics, chromosomal disorders and some idea about pedigree. chic prom wears look glittered and glamorous
b) The molecular basis of inheritance includes important topics of structure of DNA and all the experiments related to that, genetic code on Operon theory is also very important.
c) From evolution point of view the difference between analogous and homologous organs, Hardy-Weinberg principle and adaptive radiation are important.
UNIT- 3
a) This unit is very much associated with the role that biology can play in human development and welfare.
b) It focuses on different areas at the same time, so one have wide outlook to understand the motive of these chapters.
c) From exam point of view one must have the idea about difference between innate and adaptive immunity, AIDS (its causes and treatment including the structure of AIDS virus)
d) Some of the most frequently asked questions from this unit include the topics like sewage and its treatment and biogas production plant.
UNIT -4
a) This unit is very much application based and the questions asked are either short answer type questions or sometimes long answer type questions.
b) The important topics include cloning vectors, Bt cotton, PCR technology, restriction enzymes.
c) This unit is also important from entrance exam point of view, so it can be studied in detail for further benefit but if you want to focus primarily on board exams then you must study the selective topics.
UNIT-5
a) This chapter is easy to understand and equally important to score good marks.
b) The topics in focus before exams must include: population interaction and various pyramids, Nutrient cycling, Ecological succession and air pollution. These topics are asked in short or long answer type questions.
c) Eutrophication and biological magnification are topics that are mostly asked for definition.