Anatomy Reproductive System Quizlet Related

Review Anatomy Reproductive System Quizlet related questions and content

The first polar body appears in the:

  • A. primary oocyte just before ovulation
  • B. primary oocyte after birth
  • C. secondary oocyte after fertilization
  • D. primary oocyte before birth
Correct Answer: D

Rationale: The correct answer is D because the first polar body is formed during the first meiotic division of the primary oocyte before birth. The primary oocyte undergoes meiosis I to form the secondary oocyte and the first polar body. This process occurs during fetal development, not after birth.
Choice A is incorrect because the primary oocyte completes meiosis I to form the secondary oocyte and the first polar body before ovulation.
Choice B is incorrect because the primary oocyte forms the first polar body before birth, not after birth.
Choice C is incorrect because the first polar body is formed during meiosis I of the primary oocyte, not after fertilization.