Leptin is a product of
A. the brain.
B. adipose tissue.
C. the stomach.
D. the small intestine.
E. the liver.
B. adipose tissue.
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Preliminary diagnosis of prostate cancer is by a _____.
A. rectal examination B. Pap test C. CT Scan D. angiogram
Which of the following lists of structures is in the correct order from inside to outside of the cell?
A) axoneme, transition zone, basal body B) transition zone, basal body, axoneme C) axoneme, basal body, transition zone D) basal body, transition zone, axoneme E) basal body, axoneme, transition zone
The TATA box is a(n):
A: DNA sequence in the promoter region of many eukaryotic genes. B: activator sequence necessary for proper translation of eukaryotic genes. C: DNA sequence in the operator of prokaryotic genes. D: enhancer consensus sequence of eukaryotic genes. E :a general transcription factor in eukaryotes.
Which of the following helps direct the formation of the primitive streak but contributes no cells to the embryo?
A) endoderm B) mesoderm C) ectoderm D) neural crest E) hypoblast