Which muscle group is composed of mainly slow-twitch (type I) fibers?
A. Deltoid muscle of the shoulder
B. Rectus muscles that move the eye
C. Erector spinae muscles of the back
D. Small muscles of the hand
Answer: C. Erector spinae muscles of the back
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Which of the following is used in both food production and industrial fermentation?
A. Bacillus thuringiensis B. Escherichia coli C. Listeria monocytogenes D. Pseudomonas syringae E. Saccharomyces cerevisiae
Gene duplication _________ genetic variation and natural selection _________
Fill in the blank(s) with the appropriate word(s).
Genetic counseling is the best advice that a physician can give a person about his or her risk of having a child with a genetic disorder while lacking precise statistical evidence
Indicate whether the statement is true or false
Enzymes accomplish effective catalysis by _______.
a) being present in such large amounts b) overcoming the activation energy barrier c) changing the thermodynamics of the reaction d) increasing the activation energy required