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(i) RR * YY
                   (ii)  Rr * Yy
                   (iii) yy * rr
                    (iv) RR * yy
                   c) Which law can be explained from the above cross? Define it.
              8.   a) The genotype of green stemmed tomato plants is denoted by GG and that of purple
                   stemmed tomato plants as gg. When these two plants are crossed :
                   i) What colour of stem would you expect in their F1 progeny?
                   ii) Give the percentage of purple-stemmed plants if F1 plants are self-pollinated.
                   b) Show Mendel’s monohybrid cross by a flow chart using any one of the contrasting
                   traits.
              9.   Give one example each of characters that are inherited and the ones that are acquired
                   in humans. Mention two differences between the inherited and the acquired characters.
             10.  Explain with the help of a flow chart- “What determines the sex of the child
                   genetically?”





































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