Reproductive Health: Class 12 Previous Year Questions

Reproductive Health questions asked in CBSE board exams

Repeated questions first. Open the free app to see each question as it appeared in the paper, with its marking scheme.

1. Assertion (A) : The number of white winged moths decreased drastically after industrialisation in England. Reason (R) : Effects of industrialisation were more marked in rural areas of England.
   Board 20231 markAssertion-ReasonRepeated: 2023,2025
2. Observe the contents 1, 2, 3 and 4 of soil samples I, II and III shown in the graph. If the temperature and moisture of all soil samples are identical, which soil sample(s) will show faster decomposition ? 1 (A) Soil Sample I (B) Soil Sample II (C) Soil Sample…
   Board 20261 markAssertion-Reason
3. _________ Page 9 of 24 { } 12. Which connective tissue connects ovary to pelvic wall and uterus ? 1 (A) Tendons (B) Ligaments (C) Cartilage (D) Bone.
   Board 20261 markAssertion-Reason
4. Draw a neat diagram of megasporangium of an angiosperm and label any six parts. ½  6 =
   Board 20263 marksshort answer
5. (a) Mention the scientific name of the source plant and the part from which opioids are extracted. 1 (b) How are morphine and heroin related ? Mention the effect each one of them has on human body.
   Board 20263 marksshort answer
6. Study the sequence of bases in a DNA molecule that is shown below and answer the questions. 5' – GAATTC – 3' 3' – CTTAAG – 5' (a) What are such sequences called ? Name the enzyme used that recognises such nucleotide sequences. 1 (b) How do these enzymes functi…
   Board 20262 marksshort answer
7. (a) Give the scientific name of the organism used by Morgan to study sex-linked traits. 1 (b) Write any four reasons why this organism made it an ideal experimental model.
   Board 20263 marksshort answer
8. Study the diagram given below : (a) Name and explain the procedure shown in the diagram. Mention one of its advantage and one disadvantage. 2 (b) How is ‘Saheli’ different from other oral pills in terms of its composition and advantage ?
   Board 20263 marksshort answer
9. S.L. Miller conducted an experiment in 1953 to simulate the conditions of early earth in a laboratory setup. Answer the following questions based on the experiment : (a) What was the aim of his experiment ? 1 (b) Name the gases used and the source of energy.
   Board 20263 marksshort answer
10. (a) In some cases, measuring population density by counting individuals may not be feasible. Mention two other parameters that can be used and justify their use with suitable examples. 2 OR (b) What factors contribute to the Amazonian rain forests in South Ame…
    Board 20262 marksshort answer
11. Identify the plant in which emasculation is not required for artificial hybridization. 1 (A) Rice (B) Wheat (C) Pea (D) Papaya
    Board 20261 markMCQ
12. _________ Page 7 of 24 { } 9. Match Column-I with Column-II and choose the correct option : 1 Column-I Column-II a. Biolistic gun i. Bacterial cell b. Chitinase ii. Tumour inducing c. Ti iii. Animal cell d. Ca++ iv. Fungal cell v. Plant cell Options : a b c d …
    Board 20261 markMCQ
13. How many of the following features are related to Nirodh – a popular brand of condoms ? 1 (i) Prevention of sexually transmitted infections. (ii) Phagocytosis of sperms. (iii) Male contraceptive device. (iv) Acts as chemical barrier. (v) Physiological changes …
    Board 20261 markMCQ
14. Student to attempt either option-(A) or (B) : (A) How are morphine and heroin related ? Mention their effect on the human body. OR (B) (i) Name an alcoholic drink which is produced by the help of microbes : (1) With distillation (2) Without distillation (i) Ex…
    Board 20252 marksshort answer
15. Observe the given sequence of nitrogenous bases on a DNA fragment and answer the following questions : (a) Name the restriction enzyme which can recognise the DNA sequence. (b) Write the sequence after restriction enzyme cut the palindrome. (c) Why are the end…
    Board 20252 marksshort answer
16. Student to attempt either option (A) or (B). (A) (i) Describe the process of megasporogenesis in an angiosperm. (ii) Draw a diagram of a mature embryo sac of an angiosperm. Label its any four parts. OR (B) The reproductive cycle in the female primates is calle…
    Board 20255 markslong answer
17. Study the pedigree chart given below, showing the inheritance pattern of blood group in a family : Parents : Generation I : AB Generation II : Answer the following questions : (a) Give the possible genotypes of individual 1 and 2. (b) Which antigen or antigens…
    Board 20252 marksshort answer
18. q q 29. Study the graphs given below for Case 1 and Case 2 showing different levels of certain hormones and answer the question that follows : Case 1 Peak Ovulatior Follicular Luteal Phase Phase Peak Case 2 Ovulation HCG Follicular Luteal Phase Phase (a) Which…
    Board 20254 markscase-based
19. Study a part of life cycle of Plasmodium given below : Fertilization and development 13/Page (a) (b) (c) (d) 1 h hih 24. (a) (b) (i) (IUCN) (a) (b) (c) (d) 14/Page Answer the following questions : (a) Name the infective stage of Plasmodium that is stored in th…
    Board 20253 marksshort answer
20. Shyam and Radha are expecting their first child with Radha being in her second month of pregnancy with no complications. Shyam's family has a history of cystic fibrosis while Radha's family has a history of Down's syndrome, leading to a concern that the baby m…
    Board 20253 marksshort answer

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