The diagram to the right represents steps in sexual reproduction. Which of the following occurs in the step labeled "Z"?
A. Fertilization
B. Meiosis
C. Mitosis
D. Translocation

i would have a lunch. it's one big package of food, making it one food. : p

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.