Question

Differences between syngamy and triple fusion 1

Answer 1

Syngamy :-

Syngamy refers to the fusion of gametes in fertilization. The two haploid male and female gametes are fused completely and permanently, forming a diploid zygote. The two types of gametes involved in syngamy are male gametes (sperm) and female gametes (ova). Sperms are small, microscopic cells produced by spermatogenesis. The ovum is large and non-motile and is produced by the oogenesis.

triple fusion :-

Triple fusion refers to the fusion of a sperm cell with the two polar nuclei during the double fertilization in angiosperms. Double fertilization is the fusion of the egg nucleus by two male gametes. During pollination, the pollen grains are deposited on the stigma of a flower, facilitating the fertilization. Pollen contains two cells: a tube cell, which produces the pollen tube, and a generative cell, which produces two sperm cells. The germination of pollen grains on the stigma produces the pollen tube, which goes down the style until it reaches the micropyle in the ovule. Once it meets the micropyle, pollen tube bursts, releasing the two sperm cells which are carried through the pollen tube. One of the haploid sperm cells is fertilized with the haploid egg cell in the embryo sac, while the other haploid sperm cell fertilizes the central cell, which is also found in the embryo sac of the female gametophyte. Fertilization of the two gametes is called syngamy. The fertilization of a sperm cell with the central cell is known as triple fusion. As the embryo sac is fertilized twice, the fertilization of gametes in angiosperms is called double fertilization.

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Answer 2

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Syngamy :-

Syngamy refers to the fusion of gametes in fertilization. The two haploid male and female gametes are fused completely and permanently, forming a diploid zygote. The two types of gametes involved in syngamy are male gametes (sperm) and female gametes (ova). Sperms are small, microscopic cells produced by spermatogenesis. The ovum is large and non-motile and is produced by the oogenesis.

triple fusion :-

Triple fusion refers to the fusion of a sperm cell with the two polar nuclei during the double fertilization in angiosperms. Double fertilization is the fusion of the egg nucleus by two male gametes. During pollination, the pollen grains are deposited on the stigma of a flower, facilitating the fertilization. Pollen contains two cells: a tube cell, which produces the pollen tube, and a generative cell, which produces two sperm cells. The germination of pollen grains on the stigma produces the pollen tube, which goes down the style until it reaches the micropyle in the ovule. Once it meets the micropyle, pollen tube bursts, releasing the two sperm cells which are carried through the pollen tube. One of the haploid sperm cells is fertilized with the haploid egg cell in the embryo sac, while the other haploid sperm cell fertilizes the central cell, which is also found in the embryo sac of the female gametophyte. Fertilization of the two gametes is called syngamy. The fertilization of a sperm cell with the central cell is known as triple fusion. As the embryo sac is fertilized twice, the fertilization of gametes in angiosperms is called double fertilization.