Examlex
Deficiency in RAG1 and/or RAG2 can affect the proper development of which of the following cell types, resulting in decreased numbers of circulating cells of those types?
Zygote
The initial cell formed when a new organism is produced by the fusion of sperm and egg cells, representing the earliest developmental stage.
Pupa
A developmental stage of some insects, occurring after the larva stage and before adulthood, during which the organism undergoes significant transformation.
Embryonic Stage
The phase of prenatal development that occurs from fertilization until the end of the eighth week, where major structures and organ systems begin to form.
Prenatal Development
The process of growth and development within the womb, from conception to birth.
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