The first one is the 3rd option and the 2nd one is also the 3rd option
Answer: [B]: "proteins" .
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Answer:
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C. to determine the compatibility of antibodies of donor and recipient.
The correct answer is that during cross-pollination the pollen grains are carried from one plant to another plant. During self-pollination, the pollen and ovules are from the same plant.
In self-pollination, the pollen from the anther is deposited on the same flower's stigma, or on the stigma of another flower of the similar plant. In comparison, out-crossing or cross-pollination results in greater genetic diversity as the pollen grains and ovules are obtained from different plants.