Here are the essential concepts you must grasp in order to answer the question correctly.
Pollen Grain Structure
A pollen grain is a microscopic structure produced by seed plants, containing the male gametophyte. It consists of a tough outer wall called the exine, which protects the gametophyte during its transport from the male reproductive organ to the female organ of a flower.
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Gametophyte vs. Sporophyte
In the plant life cycle, the gametophyte is the haploid phase that produces gametes (sperm and eggs), while the sporophyte is the diploid phase that produces spores. Pollen grains represent the male gametophyte, which is responsible for producing sperm cells for fertilization.
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Dominant vs. Recessive Alleles
Pollination Process
Pollination is the transfer of pollen grains from the male anther to the female stigma of a flower. This process is crucial for sexual reproduction in flowering plants, as it allows for the fertilization of ovules by sperm cells, leading to seed development.
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