Pick from:
(1). offspring.
(2). pollen.
(3). resistance.
(4). Energy.
(5). Energy..
(6). heat.
(7). syngamy.
(8). glucose.

Fact 1: Gametes then unite in fertilization and form a diploid zygote. Fact 2: Syngamy produces a diploid zygote. Given the two facts above, what occurs in gametes?
Answer:
(7).