12th biology chapter 5 MCQs ( Origin and Evolution of life )

Origin and Evolution of Life Class 12 MCQ:. 1. Who proposed that the first form of life could have come from per- existing non-living organic molecules?a. Alfred Wallaceb. oparin and Haldanec. Charles Darwind. Louis Pasteur Answer: b  Explanation: The theory of biogenesis was proposed by Oparin and Haldane. It states that life could have come from pre-existing non-living … Read more

12th biology chapter 4 MCQs (Molecular Basis of Inheritance)

Molecular Basis of Inheritance Class 12 MCQ: 1. Griffith worked on …………. a. Bacteriophage b. Drosophila c. Frog eggs d. Streptococci Answer : d  Explanation: Griffith used two strains of pneumococcus (Streptococcus pneumoniae) bacteria which infect mice – a type III-S (smooth) which was virulent, and a type II-R (rough) strain which was nonvirulent. 2. The molecular … Read more

Biology MCQs for Class 12 with Answers Chapter 2 (Reproduction in Lower and Higher Animals)

Reproduction in lower and higher Animals MCQ with Answers    Important points :  Reproduction is an important characteristic of living organismns. It is the process by which an organ ism produces young individuals of its own species. Thus, maintains the conlinuity of the species.  Animals may reproduce by asexual and sexual methods.  Asexual reproduction takes … Read more

Biology MCQs for Class 12 with Answers Chapter 1 (Reproduction in Lower and Higher Plants)

Reproduction in lower abd higher plants MCQ with Answer  Reproduction is the process by which new individuals of a species are created from pre existing ones. Angiosperms are flowering plants in which ovules are present within ovary. Reproduction is of two types namely asexual and sexual reproduction. The reproduction which do not involve meiosis and … Read more