Answer the following questions true (T) or false (F)
1. Most K-selected species have short generation times.
2. Elephants are good examples of r-selected species.
3. K-selected species are also called equilibrium species.
1. FALSE
2. FALSE
3. TRUE
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The most commonly used unit for measuring cell size is a ____
a. decimeter (dm) b. centimeter (cm) c. millimeter (mm) d. micrometer (mm) e. nanometer (nm)
A DNA chip that contains rows of DNA sequences for mutations that indicate the presence of particular genetic disorders is representative of what type of biotechnology?
A. gel electrophoresis B. PCR C. gene pharming D. DNA microarrays E. DNA fingerprinting
Motility is best observed with a
A. negative stain B. flagellar stain C. streak plate D. hanging drop preparation
Which of the following methods used to study proteins is limited to proteins with a molecular mass of 50 kD or less?
(a) X-ray crystallography (b) fingerprinting (c) nuclear magnetic resonance (d) mass spectroscopy