I am providing you the previous year question paper of Biology of Class XII of Rajasthan Board of Secondary Education (RBSE)

RBSE Class XII Biology question paper

Time : 3 Hours

M.M. 56

All the questions are compulsory.

Section-A

Q.1 What are the morphologically and genetically alike individuals called ? [1]
Sol. Clones.
Q.2 Define embryogenesis. [1]
Sol. Embryogenesis refers to the process of development of embryo from the zygote. During embryogenesis,
zygote undergoes cell division and cell differentiation.
Q.3 Write the importance of colostrum. [1]
Sol. The milk produced during the initial few days of lactation is called colostrum which contains several
antibodies absolutely essential to develop resistance for the new born babies.
Q.4 Write the full form of IVF. [1]
Sol. IVF - In Vitro Fertilisation.
Q.5 Name any one Intra uterine device. [1]
Sol. Copper - T (Cu-T, Cu 7, Multiload 375)
Q.6 What is the genotype of person having klinefelter syndrome. [1]
Sol. XXY with 47 chromosomes.
Q.7 'Genetic code is unambiguous and specific.' Explain. [1]
Sol. Unambiguous and specific : - One codon codes for only one amino acid.
Q.8 Who propounded the biological evolution theory of use and disuse of organs. [1]
Sol. Jean Baptist de Lamarck.
Q.9 Mention the importance of blue - revolution . [1]
Sol. It results in the increase in the production of fish.


RBSE Class XII Biology question paper






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