Biology Mcqs

A. Endonuclease
B. Unpaired bases
C. Calcium ions
D. Free methylation

A. Gives high yield but no characteristic aroma
B. Gives high yield and is rich in vitamin A
C. Does not require chemical fertilizers and growth hormones
D. Resistant to insects and diseases

A. Brinjal
B. Tobacco
C. Rice
D. Cotton

A. Cell proliferation
B. Micropropagation
C. Cell defence
D. Cell differentiation

A. Adenosine deaminase deficiency
B. Adenosine deficiency
C. Growth deficiency
D. Adenine deficiency

A. Can be multiplied in culture
B. Self-replication in bacterial cells
C. Can be multiplied in laboratories with the help of enzymes
D. Replicate freely outside bacterial cells

A. Third generation vaccines
B. First-generation vaccines
C. Second-generation vaccines
D. None of these

A. Bt-cotton
B. Bt-brinjal
C. Golden rice
D. All

A. Karry Mullis
B. Boyer
C. Sanger
D. Cohn

A. Retrovirus
B. Baculovirus
C. Salmonella typhimurium
D. Rhizopus nigricans