Plants do not grow well in soils with a lot of clay
because these soils
a. hold onto and do not release water easily.
b. are deficient in plant micronutrients and
macronutrients.
c. tend to absorb too much surface water.
d. tend to become compacted and exclude air.
e. do none of these.
Answer: d
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What is the modern sequencing method called?
a. pseudoreplication process b. dideoxy chain termination method c. polymerase chain reaction d. gel electrophoresis
Why are mitochondria so prevalent in skeletal muscle?
A) Mitochondria provide the muscle elasticity to contract. B) Mitochondria are primarily involved in repairing damage accumulated during exercise. C) Mitochondria provide energy for muscle contraction. D) Mitochondria produce energy anaerobically. E) More mitochondria are required in tissues where blood flow is restricted.
V-onc genes are found in
A) vital cells. B) viral cells. C) cancer-causing retroviruses. D) very rapidly growing cells. E) bacteriophages.
DNA is a ____ stranded molecule.
A. double B. single C. triple