What makes the cells of a developing embryo differentiate into various types of cells?
A) They have different genes.
B) Different genes are activated.
C) The DNA of their mitochondria is different.
D) Once certain genes of a cell have caused it to differentiate, the other genes are lost.
E) Special genes in the cytoplasm cause this.
Correct Answer:
Verified
Q28: A human embryo is known as a
Q29: In humans, implantation occurs:
A)just prior to fertilization.
B)immediately
Q30: At what stage does a human embryo
Q31: Cells differentiate during development because:
A)each cell contains
Q32: The umbilical cord of a mammal connects
Q34: At which stage is the human embryo
Q35: After induction occurs:
A)cells have different genes.
B)the fate
Q36: The dorsal lip of the blastopore:
A)becomes the
Q37: Your biceps muscle is derived from the:
A)endoderm.
B)ectoderm.
C)mesoderm.
D)blastopore.
E)amnion.
Q38: In humans, fertilization occurs in the:
A)ovary.
B)testes.
C)uterine tube.
D)uterus.
E)vagina.
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