Which of the Following Is Not True of the Trophectoderm

question 5

Multiple Choice

Which of the following is not true of the trophectoderm?

• A) Cells on the morula's periphery tend to become trophectoderm
• B) Formation of the trophectoderm is the first differentiation event in mammalian embryonic development
• C) The transcription factor Oct4 promotes trophectoderm formation
• D) Mouse chimeras have been used to study trophectoderm specification

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