OMTEX CLASSES: Biology Important Question Bank 2018

Define geitonogamy and xenogamy. Give advantages of self-pollination and cross pollination.
Define vegetative propagation. Differentiate between ‘stem tuber’ and ‘tuberous root’.
Define ‘evolution’. Give the principles of Darwin’s theory of natural selection. Mention any ‘one’ objection to it.
Describe characteristics of genetic code.
Describe diagrammatic representation of age structure showing declining population.
Describe emasculation and bagging along with a diagram.
Describe hypertension. Add a note on angina pectoris.
Describe steady population with the help of a pyramid.
Describe the experiment of Hershey and Chase to prove that DNA is the genetic material.
Describe the process of budding in hydra.
Describe the ultrastructure of chloroplast. Add a note on the significance of photosynthesis.
Differentiate between anemophily and entomophily.
Differentiate between cyclic and non-cyclic photophosphorylation.
Draw a neat and well labelled diagram showing T.S. of ovary and describe the menstrual cycle in human female.
Draw a neat labelled diagram of the hair pin model of t-RNA.
Draw a neat labelled diagram showing steps of PCR.
Enlist the various types of cancer.
Explain how dichogamy favours cross pollination.
Explain how suspension culture is prepared from callus.
Explain replication of bacteriophage with the help of a suitable diagram.
Give applications of a vaccine.
Give schematic representation of carbon cycle.
Give the adverse effects of opioids, cannabinoids and morphines on human health.
Give the economic importance of fisheries.
Give the economic importance of ‘fisheries’.
Give the floral adaptations for chiropterophily.
How kidney functions are regulated? Add a note on kidney transplantation.
Sketch and label V.S. of mature anatropous ovule.
Sketch and label phases in oogenesis.
Sketch and label seminiferous tubule as seen in the T.S. of testis.
Sketch and label structure of nephron.
Sketch and label the ‘structure of HIV’.
Sketch and label ‘L.S. of human kidney’.
Sketch and label ‘human male reproductive system’.
State and explain the ‘Law of independent Assortment’ with a suitable example.
What are biocontrol agents? Mention any two groups of biocontrol agents and their hosts.
What is respiratory quotient (RQ)? Why RQ in anaerobic respiration is infinite?
What is sex linkage? Explain the inheritance of colour blindness and haemophilia with suitable charts.
What is tissue culture? Describe the methodology of tissue culture.
What is ‘biopatent’? Give examples.
What is ‘double fertilization’? Describe it with the help of a neat and well labelled diagram. Also state its importance.
What is ‘photorespiration’? Explain it with diagrammatic representation.1
With the help of a chart, explain the method of sex determination in honeybees.
With the help of a labelled diagram of lateral view of cerebrum, describe its structure and give any two functions of cerebrum.
With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae)
With the help of a well labelled diagram describe the internal structure of human heart.
With the help of a well labelled diagram describe the internal structure of human heart.
With the help of diagrammatic representation, explain the process of gametogenesis.
With the help of schematic representation explain Kreb’s cycle.
Write a note on desert adaptions.
‘There is a hole in the ozone layer’. What do you understand by this?

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