Multiple Choice
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
Correct Answer:
Verified
Q63: Labor and delivery are an example of
Q77: Free radicals are most damaging to the:<br>A)mitochondria.<br>B)cell
Q78: In animals that undergo indirect development, the
Q83: The nervous system forms from the:<br>A)ectoderm.<br>B)mesoderm.<br>C)endoderm.<br>D)yolk.<br>E)chorion.
Q84: A human embryologist examines a 3-week-old embryo
Q85: In organisms that develop in eggs, the
Q86: Based on experiments with amphibian embryos, Spemann
Q91: The hormone_ promotes both mammary gland development
Q100: The process by which an organism proceeds
Q111: _is the antibody-rich milk produced in the