The single cell generated at the moment of conception when a sperm fertilizes an ovum is designated as the:
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Answer: D. Zygote
Explanation
A zygote is the single cell generated at the moment of conception. It forms when a sperm successfully fertilizes an ovum. This cell contains the complete genetic blueprint for the new organism. Prenatal development begins immediately following successful fertilization. The zygote undergoes rapid mitotic cell division during early travel. Chromosomes from both parents combine within the newly formed zygote.
Embryology studies the earliest stages of human growth and development. Genetic disorders can originate at the very moment zygote formation occurs. Understanding conception is fundamental for developmental biology courses. A blastula is a later multicellular stage following initial zygote division. An embryo represents the developing organism after implantation occurs. A fetus is the developmental designation used later in pregnancy.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
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