Multiple Choice
What happens during the S phase of the cell cycle?
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11. Cell Division
Introduction to the Cell Cycle
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The phase of the ovarian cycle that extends from ovulation to the start of menstruation is the:
A
luteal phase
B
proliferative phase
C
menstrual phase
D
follicular phase
Verified step by step guidance1
Understand the ovarian cycle: The ovarian cycle consists of three main phases—follicular phase, ovulation, and luteal phase. These phases are regulated by hormonal changes and are crucial for reproduction.
Identify the luteal phase: The luteal phase begins after ovulation and lasts until the start of menstruation. During this phase, the ruptured follicle transforms into the corpus luteum, which secretes progesterone to prepare the uterus for potential implantation.
Differentiate the phases: The follicular phase occurs before ovulation and involves the maturation of follicles. The proliferative phase refers to changes in the uterine lining, not the ovarian cycle. The menstrual phase is the shedding of the uterine lining, marking the start of a new cycle.
Match the description: The question specifies the phase extending from ovulation to menstruation. Based on the ovarian cycle, this matches the luteal phase.
Conclude the reasoning: The luteal phase is the correct answer because it aligns with the hormonal and physiological events described in the question.
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