List of top Biology Questions

Which of the following steps are related to polymerase chain reaction (PCR)?
(A) Extension
(B) Annealing
(C) Propagation
(D) Denaturation

Which of the following is incorrect with reference to drug abuse?

EcoRI, a significant tool in rDNA technology is -

Arrange the given steps involved in gel electrophoresis used for separation of DNA fragments?
(A) Exposure to UV light
(B) Staining with ethidium bromide
(C) Moving of DNA fragments towards anode
(D) Elution

Which of the following disorders are the results of aneuploidy? (A) Haemophilia
(B) Down’s Syndrome
(C) Thalassemia
(D) Turner’s Syndrome

Which one of the following options will express intermediate skin colour in an individual?

Which one of the following is not associated with the process of transcription in bacteria?

Which of the following are not involved in intra uterine devices? (A) Lippes Loop
(B) LNG-20
(C) Saheli
(D) Implants

The process of copying genetic information from one strand of DNA into RNA is termed as -

Which type of innate immunity is exhibited by interferons secreted by virus-infected cells to protect non-infected cells?

Which one of the following is opposite part of micropylary end of ovule?

Choose the correct equation from the following options to show the correct relationship between Gross Primary Productivity (GPP), Respirational Losses (R), and Net Primary Productivity (NPP).

Antibody molecule has:

Which one of the following guides the entry of the pollen tube into the embryo sac?

Which of the following organelles is involved in the synthesis of proteins?

Write a note on Thalassaemia.

Write a note on Colour blindness.

What do you understand by biodiversity? How can it be preserved?

Write an essay on search for genetic material.

Write a note on immunity.

Describe the menstrual cycle with a diagram.