From which primary germ layer is the thyroid gland derived?
A. Endoderm
B. Ectoderm
C. Mesoderm
Answer: A
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Although all cells synthesize phospholipids, there are no genes for phospholipids
Indicate whether the statement is true or false
Eosinophils
A) are phagocytic cells. B) represent up to 70 percent of the white blood cell population. C) are agranular leukocytes. D) are among the largest of the white blood cells. E) None of the answers are correct.
What cells contribute to the process of calcification during intramembranous ossification?
A) osteocytes B) osteoblasts C) keratinocytes D) osteoclasts
With regard to reproduction, which is correct about SRY?
A. It is a gene found in both males and females. B. It is a protein that causes the degeneration of the Wolffian ducts. C. It is a protein that is normally coded for by a gene that is present on the Y chromosome. D. It is a gene that codes for testosterone. E. It is a protein normally coded for by a gene that is present on the X chromosome.