Melanocytes ultimately arise from
A. the ectoderm.
B. the neural tube.
C. the notochord.
D. the mesoderm.
E. the endoderm.
Answer: A
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Gene expression is the same in both prokaryotes and eukaryotes; they are just regulated differently. What is gene expression?
a. discontinuation of the production of a gene due to an excess of the product b. a form of positive feedback where the product induces additional production of a protein c. the process of turning on a gene to produce RNA and protein d. a form of remote sensing similar to chemotaxis
Chickenpox is caused by an orthopoxvirus.
Answer the following statement true (T) or false (F)
If you wished to increase enzyme activity, you would do all of the following except
A) increase the temperature moderately. B) increase the concentration of the enzyme. C) increase the amount of substrate. D) change to optimum pH for the reaction. E) decrease the temperature.
A(n) (catalyst/enzyme) is any molecule that speeds up a chemical reaction
What will be an ideal response?