객관식
Mitosis and meiosis are both ways in which cells:
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11. Cell Division
Introduction to Cell Division
객관식
Which of the following correctly describes the sequence of stages during early embryonic development, starting from a fertilized egg?
A
Blastocyst → Morula → Cleavage → Zygote
B
Cleavage → Zygote → Blastocyst → Morula
C
Zygote → Cleavage → Morula → Blastocyst
D
Morula → Zygote → Cleavage → Blastocyst
검증된 단계별 안내1
Understand the key terms: A zygote is the single-celled fertilized egg. Cleavage refers to the rapid mitotic divisions of the zygote. A morula is a solid ball of cells formed after several rounds of cleavage. A blastocyst is a hollow structure formed in the early stages of development, containing an inner cell mass that will develop into the embryo.
Recognize the sequence of events in early embryonic development: The process begins with the zygote, which undergoes cleavage to form a morula. The morula then transitions into a blastocyst.
Analyze the options provided: Compare each sequence to the correct developmental order (Zygote → Cleavage → Morula → Blastocyst). Eliminate options that do not follow this order.
Focus on the correct sequence: Zygote is the starting point, followed by cleavage (cell division), leading to the formation of the morula, and finally the blastocyst.
Conclude that the correct answer is: Zygote → Cleavage → Morula → Blastocyst, as this sequence accurately reflects the stages of early embryonic development.
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