Select the set of event, in chronological order, as they occur during sexual reproduction in multi-cellular animals.

Select the set of event, in chronological order, as they occur during sexual reproduction in multi-cellular animals.





A - Fertilization, cleavage, gametogenesis, formation of the three primary germ layers, organogenesis

B - Gametogenesis, cleavage, fertilization, formation of the three primary germ layers, organogenesis

C - Gametogenesis, fertilization, cleavage, formation of the three primary germ layers, organogenesis

D - Gametogenesis, fertilization, cleavage, organogenesis, formation of the three primary germ layers





Answer: C - Gametogenesis, fertilization, cleavage, formation of the three primary germ layers, organogenesis

SEXUAL reproduction is when two parents produce offspring with unique combinations of genes from both parents.

Series of events:

1) Gametogenesis - formation of gametes

2) Fertilization - sperm and egg unite

3) Establishment of three major body axes

4) Cleavage - zygote rapidly divides to become multi-cellular

5) Formation of three germ layers

6) Organogenesis - formation of organs


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