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Multiple Choice
In the context of cell division and reproduction, what is an ovulated egg more technically referred to as?
A
Primary oocyte
B
Secondary oocyte
C
Zygote
D
Oogonium
Verified step by step guidance
1
Understand the context of the question: The problem is asking for the technical term for an ovulated egg in the process of cell division and reproduction. This involves understanding the stages of oogenesis, the process by which eggs are formed in females.
Review the stages of oogenesis: Oogenesis begins with oogonia, which are the precursor cells. These develop into primary oocytes during fetal development. Primary oocytes are arrested in prophase I of meiosis until puberty.
Learn what happens during ovulation: At puberty, hormonal signals trigger the continuation of meiosis in some primary oocytes. These develop into secondary oocytes, which are arrested in metaphase II of meiosis and are released during ovulation.
Clarify the term 'ovulated egg': The ovulated egg is technically referred to as a secondary oocyte because it is the cell released during ovulation and is ready for fertilization. It will only complete meiosis II if fertilization occurs, forming a zygote.
Understand the incorrect options: The primary oocyte is a precursor to the secondary oocyte and is not ovulated. The oogonium is the earliest stage of egg development. A zygote is formed only after fertilization of the secondary oocyte by a sperm cell.