List of top Biology Questions asked in Bihar Board Class XII

Which of the following statements is incorrect?
Reason for movement of DNA fragments towards anode in electrophoresis is DNA fragments being
Which of the following techniques was used to get yellow mosaic virus resistant mung lentil?
Hisardale is a breed of which of the following animals?
Which of the following is not responsible for vegetative propagation of plants?
Which of the following is not a part of microsporangium?
Amount of which vitamin increases after conversion of milk into curd?
Alexander Fleming discovered penicillin while working on which of the following bacteria?
Which of the following inhibits synthesis of cholesterol?
When did prehistoric cave art develop?
What do analogous structures show?
Capacity to generate a whole plant from a plant cell is called as
Paleontological evidence is based on the study of
Which of the following statements is incorrect about DNA replication?
Which of the following enzymes is responsible for transcription of ribosomal RNA?
Some amino acids are coded by more than one codon. Such code is known as
What is the role of y gene in lac operon?
From which of the following bacteria, thermostable DNA polymerase is isolated?
Which of the following bacteria synthesizes insecticidal protein?
Which of the following plants produces poisonous cardiac glycoside?
Which of the following are decomposers?
Which of the following is not a cloning vector for bacteria?
Which of the following methods is used to inject recombinant DNA into nucleus of animal cell directly?
For isolation of DNA a fungus is treated with which enzyme?
Which of the following is absent in pBR322?