Syngamy results in formation of

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haploid zygote

diploid zygote

non-motile male gametes

motile male gametes

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This question was previously asked in

UPSC CDS-1 – 2017

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Syngamy is the fusion of two gametes (usually a male and a female gamete) to form a single cell called a zygote. In most organisms, gametes are haploid (containing half the number of chromosomes, denoted as n). The fusion of two haploid gametes results in a diploid zygote, which contains the full number of chromosomes (denoted as 2n).

Syngamy is the core event of sexual reproduction, leading to the formation of the first diploid cell of the new organism.

The zygote undergoes mitotic divisions and differentiation to develop into an embryo and eventually a complete organism. Motility of gametes is a characteristic of the gametes themselves, not an outcome of syngamy.

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