In the alternation of generations life cycle two gametes fuse together to form a a. gametophyte plant. b. meiotic division. c. zygote. d. sporophyte plant.

C. Zygote

Explanation:

Alternation of a generation refers to a type of life cycle wherein organisms spend part of their life span in the gametophytic stage and part in a sporophytic stage.  

The gametophytic stage is the one that bears gametes producing organs and produce gametes. Male and female gametes fuse together to form a zygote. The zygote develops into sporophyte by repeated cell divisions.

The sporophyte stage of the life cycle is the one that is responsible for the formation of spores. Spores germinate to give rise to the gametophyte stage and the cycle repeats itself.

For example, flowering plants have a dominant sporophytic phase. The haploid male and female gametes are formed in microsporangia and megasporangia respectively.

The male gametes of flowering plants are carried by pollen to the female gamete, the egg cell. This is followed by the fusion of male and female gamete to form a diploid zygote. The zygote divides mitotically and forms an embryo.

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