BIOLOGY IMPORTANT QUESTIONS
1) SEXUAL REPRODUCTION IN FLOWERING PLANTS
1. Explain the structure of pollen grains (microspore) with neat labelled
diagram
2. Explain the structure of anther (microsporangium with diagram).
3. Explain the structure of megasporangium (anatropous ovule) with diagram.
4. Describe the structure of mature embryo sac (female gametophyte) with
diagram.
5. Describe the structure of Dicot embryo with the help of diagram.
6. Describe the structure of Monocot embryo the help of diagram.
7. Explain megasporogenesis with diagram.
8. What is double fertilization? Describe embryo sac with a labelled diagram.
fertilized
9. Describe the outbreeding devices that prevent the autogamy. 10. Mention
the differences between microsporogenesis and megasporogenesis.
11- What is pollination? Describe the types of pollination.
12- Explain the mechanism of pollination in Vallisneria and Zostera (sea
grasses)
13- What is entomophily? Mention the characteristics of insect pollinated
flower.
14- Write the events of development of female gametophyte
(megasporangium) with diagram.
15- Describe pollen pistil interaction.
16- Explain the structure of a typical flower.
17- What is artificial hybridization. Explain.
19. Mention the characteristics of wind pollinated and water pollinated flower.
20. Mention the main three events is sexual reproduction
21.Define and write the function of the following
(a) Polyembryony
(b) Apomixis
(c) Pericarp
(d) Parthenocarpic fruit
(e) Perisperm
(f) Emasculation
(g) Tapetum
(h) Sporopollenin
22. Distinguish the following
(a) Free nuclear endosperm and cellular endosperm.
(b) Albuminous seed and non-albuminous seed.
(c) False fruit and true fruit.
23. Mention the order of embryo development.
2) HUMAN REPRODUCTION
1. Draw neat labelled diagram of male reproductive in human.
2. Draw neat labelled diagrams of female reproductive System in human.
3. Draw neat Labelled diagram of the following.
(a)Mammary gland
(b) Sperm
(c)Seminiferous tubule
(d)Spermatogenesis
(c)Oogenesis
4. Explain oogenesis with diagram
5. Explain spermatogenesis with diagram.
6. Differentiate spermatogenesis and oogenesis.
7. Define Parturition and Fetal Ejection reflex.
8. what is placenta. Write its function. Mention the hormone produced by it.
9. Explain menstrual cycle with diagram.
10. Explain structure of tests and ovary
3) REPRODUCTIVE HEALTH
1. What is contraceptive method? Wat are the features of ideal an
contraceptive method?
2. Describe different contraceptive method.
3. What is infertility? How is infertility treated by assisted reproductive
technology (ART)? Or explain the different ART or Explain the technique
to assist infertile to have children.
4. What is MTP? Mention the safe period of pregnancy for MTP.
5. What is STPs? Give example. Write simple methods to prevent STPs
(Sexually transmitted diseases).
6. What are amniocenteses?
4 PRINCIPLES OF INHERITANCE AND VARIATION
1. What is incomplete dominance? Explain it with example.
2. What is dihybrid cross (two give inheritance). Illustrate with an example
or state law of independent assortment. Explain with example.
3. Explain the law segregation with example or explain monohybrid cross
or Inheritance of one gene with example.
4. What is test cross? write its significance.
5. What is co dominance? Give example.
6. Why has TH Morgan selected fruit flies for his genetical experiments?
7. What is linkage and recombinants? Explain with diagram.
8. What is pedigree analysis? What is its significance?
9. What are multiple alleles? Give example.
10. What are chromosomal disorders? Write the karyotype, Write the
causes and symptoms of 3 types chromosomal disorders?
11. What is Sex determination? Write about haplodiploid sex
determination in honey bees.
12. Explain sex determination in human beings.
13. Explain sex determination in insects.
14. What is Mendelian Disorder? Explain different Mendelian disorder [
Sickle cell anemia, colour blindness, Thalassemia, phenylketonuria,
Hemophilia.
15. What is polygenic Inheritance and Pleiotropy?
5) MOLECULAR BASE OF INHERITANCE
1. What is DNA finger printing? Write the steps and application of DNA
finger printing.
2. Explain Lac Operon (switch on and off) with diagram
3. Salient features of Genetic Code?
4. What are the goals and features of HGP?
5. What is nucleosome. Explain it with diagram.
6. Explain [Griffith's, Avery's and Meselson and Sthals experiment].
6) MICROBES IN HUMAN WELFARE
1. Explain the role of Microbes in household products.
2. Explain the role of Microbes in industrial products.
3. Explain sewage treatment.
4. Explain the role of Microbes as biofertilizers.
5. Explain the role of Microbes as biological control of pest and diseases.
6. Explain Biogas plant with neat labelled diagram
7) BIODIVERSITY AND CONSERVATION
1. What is bio diversity? Mention its types.
2. Write about the evil quartet of Biodiversity or causes of biodiversity
loss.
3. Differentiate Exsitu and Insitu conservation with example.
4. Define Endemism, Sacred Groves, Hotspot with examples?
5. Why Tropical region has great biodiversity than temperate region?
6. Explain species area richness with diagram.
7. List extinct organisms as per IUCN list.
8) ECOSYSTEM
1. What is decomposition? Explain the various steps in decomposition.
2. Describe the factors which affect decomposition.
3. What is ecological pyramid? Explain the various type of pyramid and
their limitation.
4. Differentiate
(1) Primary productivity and secondary productivity.
(2) GPP and NPP.
(3) GFC and DFC.
5. Mention the fundamental components of ecosystem.
6. Define
(1) Stratification.
(2) Trophic level.
(3) Food web.
(4) Food chain.
(5) Standing crops.
9) ORGANISMS AND POPULATION
1. What is Population interaction? Explain different types with example.
2. Explain exponential and Logistic growth curve with graph.
3. What is population growth? Explain the factors responsible for a
fluctuating population density.
10) BIOTECHNOLOGY AND ITS APPLICAION
1. With reference to tissue culture define, Explants, totipotency, Soma
clones, and Somatic hybrids Micropropagation.
2. What is tissue culture? Mention its application.
3. What is RNA interference? Explain how this technology is used to
develop resistance in tobacco plant against nematode infection.
4. What is gene therapy? Explain.
5. “One of the applications of biotechnology is the production of insect
resistant crop plant”. Justify the statement with reference to BT cotton.
6. What are transgenic animals? Describe the uses of transgenic animals.
7. What is biopiracy? Explain with reference to basmati rice.
8. Explain molecular diagnostic tools used in early diagnostic.
9. What is GMO? Give its importance.
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Assignment 1 and 2 (all diagrams)
ALL THE BEST
