List of top Biology Questions

Distinguish between human sperm and ovum.

Observe the graph and select the correct option: 

What are the reasons for the success of Mendel?
Give the name of the microbial source of the antibiotic chloromycetin.
What is the full form of IAA?
Identify the appropriate term for the number of births under ideal conditions:
Which one of the following does not evolve further?
Which of the following types require pollinator but result is genetically similar to autogamy?

Recognition sequences of restriction enzymes are generally ___________ nucleotides long. 
 

Which of the following is caused by an unsterilized needle?
Which of the following divides the nasal cavity?

In absence of fertilization, corpus luteum degenerates into __________. 
 

Which one of the following is not a part of lac operon?
Identify the growth hormone in plants which causes inhibitory effect.
What is opium? Which plant is it obtained from?
How many chromosomes are found in Klinefelter and Turner Syndromes?
How many types of immunity occur in humans? Write their names.
What are antibiotics? Name any two microbes which are used in the production of antibiotics.
Describe the Hardy-Weinberg principle.
What do you understand by the origin of life?
Explain any three important characteristics of a population.
What do you understand by infectious diseases?
Describe the human male reproductive system and explain the process of sperm formation.
Exonuclease and Endonuclease enzyme
What do you mean by sex-linked characters? Describe with the help of line sketches, the inheritance of two sex-linked characters in humans.