Question

The primary sex organs in males and females, respectively, are

• A. Testis and ovary
  
• B. Scrotum and mammary gland
  
• C. Testis and uterus
  
• D. Penis and vagina
  

Answer 1

The correct option is A Testis and ovary


Primary sex organs
The organs which produce the gametes and and secretes sex hormomes are called primary sex organs.

Testis
Testis is the primary sex organ in males which produces male gametes (sperms). It also secretes male sex hormone testosterone.

Ovary
Ovary is the primary sex organ in females. It produces female gametes (ovum) and secretes hormones like estrogen, progesterone etc.

Scrotum
Scrotum is a sac-like structure present outside the abdominal cavity. Scrotum contains testes to provide optimum temperature ($2-{2.5}^{\circ }C$ lower than body temperature) for the formation of sperms.

Penis
Penis is the male external genitalia which acts as the copulatory organ. It helps in the insemination and micturition.
Part 6: Female sex accessory ducts
The female sex accessory ducts includes fallopian tubes (oviducts), uterus and vagina.

Mammary glands
Mammary glands are female accessory glands. They are the modified sweat glands that contain glandular tissue and variable amounts of fat. They are present in the chest.