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Biology
List of top Biology Questions
Amount of which vitamin increases after conversion of milk into curd?
Bihar Board XII - 2024
Bihar Board XII
Biology
Microbes in human welfare
Alexander Fleming discovered penicillin while working on which of the following bacteria?
Bihar Board XII - 2024
Bihar Board XII
Biology
Microbes in human welfare
Which of the following inhibits synthesis of cholesterol?
Bihar Board XII - 2024
Bihar Board XII
Biology
Microbes in human welfare
Capacity to generate a whole plant from a plant cell is called as
Bihar Board XII - 2024
Bihar Board XII
Biology
Biotechnology
When did prehistoric cave art develop?
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Bihar Board XII
Biology
Evolution
What do analogous structures show?
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Bihar Board XII
Biology
Evolution
From which of the following bacteria, thermostable DNA polymerase is isolated?
Bihar Board XII - 2024
Bihar Board XII
Biology
Biotechnology
Paleontological evidence is based on the study of
Bihar Board XII - 2024
Bihar Board XII
Biology
Evolution
What is the role of y gene in lac operon?
Bihar Board XII - 2024
Bihar Board XII
Biology
The molecular basis of inheritance
Which of the following statements is incorrect about DNA replication?
Bihar Board XII - 2024
Bihar Board XII
Biology
The molecular basis of inheritance
Which of the following bacteria synthesizes insecticidal protein?
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Bihar Board XII
Biology
Applications of Biotechnology
Which of the following enzymes is responsible for transcription of ribosomal RNA?
Bihar Board XII - 2024
Bihar Board XII
Biology
The molecular basis of inheritance
Some amino acids are coded by more than one codon. Such code is known as
Bihar Board XII - 2024
Bihar Board XII
Biology
The molecular basis of inheritance
If a foreign DNA is inserted in tetracycline resistant gene, the recombinant plasmid
Bihar Board XII - 2024
Bihar Board XII
Biology
Biotechnology
Which of the following are decomposers?
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Bihar Board XII
Biology
Ecosystem
For isolation of DNA a fungus is treated with which enzyme?
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Bihar Board XII
Biology
Biotechnology
Which of the following is not a cloning vector for bacteria?
Bihar Board XII - 2024
Bihar Board XII
Biology
Biotechnology
Which of the following is absent in pBR322?
Bihar Board XII - 2024
Bihar Board XII
Biology
Biotechnology
Which of the following plants produces poisonous cardiac glycoside?
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Bihar Board XII
Biology
Human health and disease
Which of the following methods is used to inject recombinant DNA into nucleus of animal cell directly?
Bihar Board XII - 2024
Bihar Board XII
Biology
Biotechnology
Which of the following reproduces once in a lifetime?
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Bihar Board XII
Biology
Reproductive Health
Which of the following is not the reason for global warming?
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Bihar Board XII
Biology
Environmental Issues
Which of the following statements is incorrect about temperature?
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Bihar Board XII
Biology
organisms and populations
When percentage of individuals of pre-reproductive, reproductive and post-reproductive phase is in decreasing order in the age pyramid of human population, it shows that population is
Bihar Board XII - 2024
Bihar Board XII
Biology
organisms and populations
What was the reason for co-existence of five closely related species of warblers?
Bihar Board XII - 2024
Bihar Board XII
Biology
organisms and populations
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