NCERT Class 12 Biology
NCERT Class 12 Biology MCQs for NEET
Practice Class 12 NCERT Biology questions for NEET-UG, including molecular genetics, inheritance, biotechnology, reproduction, and human welfare.
Last updated: July 30, 2026
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NCERT Class 12 topic practice
Sample NCERT Class 12 MCQs with answers
Which of the following is correct regarding the regulation of tryptophan operon?
Recombinant DNA technology • NCERT Biology Class 12, Chapter 9Which of the following techniques involves the use of restriction enzymes?
Mutation and gene expression • NCERT Biology Class 12, Chapter 5Due to a mutation that changes a coding codon into a termination codon, such a mutation is known as
Mutation and gene expression • NCERT Biology Class 12, Chapter 5Which of the following is not a term used to describe mutations in structural genes?
Mutation and gene expression • NCERT Biology Class 12, Chapter 5Huntington gene's first exon shows (CAG)n repeats, with less than 35 repeats considered normal and more than 35 leading to Huntington disease. This mechanism of disease caused by the change in (CAG)n repeat number is known as
Pedigree analysis and inheritance patterns • NCERT Biology Class 12, Chapter 4Consanguineous marriage can significantly increase the incidence of which type of genetic disorder?
Pedigree analysis and inheritance patterns • NCERT Biology Class 12, Chapter 4Consanguineous marriage can most significantly increase the risk of which type of disease?
Pedigree analysis and inheritance patterns • NCERT Biology Class 12, Chapter 4The mode of inheritance for Duchenne muscular dystrophy is
Pedigree analysis and inheritance patterns • NCERT Biology Class 12, Chapter 4The inheritance pattern of Gaucher disease is
Pedigree analysis and inheritance patterns • NCERT Biology Class 12, Chapter 4Most inherited metabolic defects are mostly due to