List of top Biology Questions

Which of the following is caused by unsterilized needle?
Recognition sequence of restriction enzymes are generally ______________ nucleotides long.
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?
Identify the growth hormone in plants which causes inhibitory effect.
Which of the following divides nasal cavity?
In absence of fertilization, corpus luteum degenerates into ____________.
Which one of the following is not a part of lac operon?
(A) Comment upon the mode of pollination in Vallisneria and Zostera. (B)
How does the process of Natural Selection affect Hardy-Weinberg equilibrium? Explain with the help of graphs.
Which organelle is primarily responsible for producing ATP in a cell?

Student to attempt either option-(A) or (B):
(A) Write the features a molecule should have to act as a genetic material. In the light of the above features, evaluate and justify the suitability of the molecule that is preferred as an ideal genetic material. 
OR 
(B) Differentiate between the following:

  • [(i)] Polygenic Inheritance and Pleiotropy
  • [(ii)] Dominance, Codominance and Incomplete dominance

The normal pH of arterial blood is:

Which enzyme is deficient in Gaucher’s disease?

Which of the following cranial nerves is responsible for the motor innervation of the muscles of mastication?

What is the genotype of Drosophila showing normal wings?
If a colour-blind woman marries a person whose mother is colour-blind, then what is the probability of colour blindness in their offspring?
Present a well-labelled neat and clean diagram of recombinant technology.
Describe biofortification in brief.
Describe the process of sex-determination in honeybees.
Write any two differences between integument and testa.
What do you understand by ground water? Describe the causes for its depletion and remedies.
Present a neat, clean, and well-labelled diagram of an embryo inside the human uterus.
What is the importance of Red Data Book?