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The following picture is showing the ama...

The following picture is showing the amazed variety of architecutrue (sizes, shapes, designs) seen on the pollen grains from different species.

These micrographs are taken by

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The following picture is showing the amazed variety of architecture (sizes, shapes, designs) seen on the pollen grains from different species. These micrographs are taken by

Following table shows data on amino acid substitution in the alpha chain of haemoglobin in four different mammalian species A,B,C and D on the basis of the data shown in the table. Choose the most appropriate evolutionary tree from those given below.

Consider the following statements with respect to the flowering plants and choose the correct option (a) Pollen grains represent the male gametes (b) Functional megaspore develops innto embryo sac that represents the female gamete (c) Transfer of pollen grains from anther to stigma of different plant is known as xenogamy (d) Transfer of pollen grains from anther to stigma of another flower of the same plant is known as geitonogamy

Consider the following statements with respect to the flowering plants and choose the correct option (a) Pollen grains represent the male gametes (b) Functional megaspore develops innto embryo sac that represents the female gamete (c) Transfer of pollen grains from anther to stigma of different plant is known as xenogamy (d) Transfer of pollen grains from anther to stigma of another flower of the same plant is known as geitonogamy

Consider the following statements with respect to flowering plants I. The pollen grains represent the male gametes.II. The functional megaspore develops into the embryo sac represent the female gamete.III. Transfer of pollen grains from anther to the stigma of different plant is known as xenogamy.IV. Transfer of pollen grains from anther to the stigma of another flower of the same plant is known as geitonogamy. Of the above statements.