Examlex
Absolute refractory periods occur in the axon of the cell; relative refractory periods occur in the dendrite or soma of the cell.
Y Chromosome
A sex chromosome that is typically present in males, carrying genes that determine male sexual traits and development.
X Chromosome
One of the two types of sex chromosomes, present in both males and females, that plays a key role in determining genetic traits and sex.
Genitalia
The external and internal organs of the reproductive system in both males and females.
Primary Sex Characteristics
The physical features directly involved in reproduction, such as the ovaries in females and testes in males.
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