The Drosophila homeotic genes typically contain the homeobox. The homeobox is a sequence of 180 nucleotides. The number of amino acids coded for by this sequence is
A. 30.
B. 60.
C. 90.
D. 120
E. 180.
B. 60.
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Differences between mitochondrial and E. coli electron transport chains include the following:
A. The E. coli chain contains a different array of cytochromes. B. Higher P/O values are observed in E. coli. C. The electron transport chain does not involve membranes in E. coli. D. The fundamental principles on which they operate are different.
The mosquito is often a vector of disease. How does this relate directly to its method of obtaining food?
What will be an ideal response?
The size of the motor area in the brain for any specific body part is relative to:
a. the rest of the body.
b. its position in the body. c. the complexity of its movements. d. the number of muscles it contains. e. the area of the brain that controls it.
The duration of pregnancy normally is ______ weeks.
What will be an ideal response?