12th Class Biology Principle Of Inheritance And Variation

  • question_answer 1)
    Mention the advantages of selecting pea plant for experiment by Mendel. 

    Answer:

                    Mendel selected garden pea as his experimental material because it had the following advantages:                 (i) The pea plants showed a number of well defined contrasting characters.                 (ii)  It has perfect bisexual flowers containing both male and female parts. The flowers are predominantly self pollinating.                 (iii) Because of self fertilization, plants are homozygous. It is, therefore, easy to get pure lines for several generations.                 (iv) It is an annual plant. Its short life cycle made it possible to study several generations within a short period.                 (v) It is easy to cultivate.                 (vi) It is easy to cross because pollen from one plant can be introduced to the stigma of another plant.  The flower and fruit of garden pea A. Pea flower; B. Petals are shown opened, then removed in an enlarged view of the reproductive structures of flower and lower right a pea pod (partly cut).  


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