Which of the following is not true?

Primary sexual characters are present from birth

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Primary and Secondary sexual characters differentiates humans into sexually dimorphic species

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Secondary sexual characters are not directly related to production of gametes

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Secondary sexual characters includes the ovaries and penis

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Solution

The correct option is D
Secondary sexual characters includes the ovaries and penis

Primary sexual characters are present from birth and are directly concerned with reproduction. The vagina(ovaries)are in females and penis(testes) in males are primary sexual characters. Secondary sexual characters appear during puberty by the hormones released during this time. Primary and secondary sexual characters differentiate males and females in a sexually dimorphic species. Secondary sexual characteristics are not concerned with reproduction or production of gametes.

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