List of top Biology Questions asked in Maharashtra Board Class XII Exam

What are the significances of double fertilization?
Explain factors affecting water absorption.
What is the full form of IAA?
Explain the term Emigration.
Give the name of microbial source of antibiotic chloromycetin.
What are the reasons for the success of Mendel?
Give the name of endocrine gland which is prominent at birth but gets gradually atrophied in adult stage.
Which cells of islets of Langerhans produce a hormone insulin?
Arrange the following steps of DNA fingerprinting in correct sequence :

Gel electrophoresis
Isolation of DNA
Southern blotting
Restriction digestion
How many meiotic divisions are required for the formation of 300 seeds in angiosperm?
Expand the term ZIFT.
What are vestigeal organs?
Which of the following is caused by unsterilized needle?
Identify the appropriate term for the number of births under ideal conditions :
Observe the graph and select correct option :
Which one of the following does not evolve further?
Recognition sequence of restriction enzymes are generally ______________ nucleotides long.
Which of the following types require pollinator but result is genetically similar to autogamy?
Which one of the following is not a part of lac operon?
Which of the following divides nasal cavity?
Identify the growth hormone in plants which causes inhibitory effect.
In absence of fertilization, corpus luteum degenerates into ____________.
What are vestigial organs?
What is differentiation and redifferentiation?
Explain unique features of acquired immunity.