List of top Biology Questions

Explain the features required to facilitate cloning into a vector.
Write short notes on the following: Lymphocytes in human blood
Write a short note on any three chromosomal aberrations (syndromes) found in humans.
Write a note on Natural Selection.
Write a note on Nucleotide.
Describe the medicinal use of microorganisms.
What do you mean by Medical Termination of Pregnancy (MTP)?
What is Gel Electrophoresis?

Interpret the given diagrams A and B. Enlist the changes occurring during inspiration and expiration. 

Explain the following terms:
(a) Grafting
(b) Apomixis
(c) Polyembryony
(d) Parthenocarpy
Describe the nervous system in Planaria with a well-labeled diagram.
What are chromosomal disorders? Describe Turner’s syndrome and Klinefelter’s syndrome.
Describe the histological structure of the testis with a well-labeled diagram.
What is lac? Enlist economic importance of Lac.
Describe the pyramid of energy with the help of a diagram.
Give the name and type of I, IV and VII cranial nerves.
Describe the physiological effects and applications of ethylene.
Explain the greenhouse effect with reference to gases responsible for it and their sources.
What are the limitations of the root pressure theory?

Identify A, B, and C from the above diagrams and give their functions. 


 

Explain different steps involved in the PCR technique.
Name and describe hormones secreted by ovaries.
Explain unique features of acquired immunity.
What is reproductive isolation? Describe any two types each of pre-mating and post-mating isolating mechanisms.
Give the different steps involved in the formation of mRNA from hnRNA.