Genes that are exchanged between prokaryotes are contained in ____ molecules
a. pili
b. plasmid
c. prokaryotic RNA
d. nuclear
e. protein
ANSWER: b
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Image "C" indicates that only portions of the habitat are favorable to support growth. This type of population distribution, where growth occurs in grouping patterns, is called
A. nonselected distribution.
B. uniform distribution.
C. clumped distribution.
D. random distribution.
E. forced distribution.
Which of the following results when ethanol is allowed to oxidize to acetic acid following the fermentation of fruit, grain, or vegetables?
A) beer B) wine C) champagne D) vinegar E) malt
Which of the following statements below is false?
A) At meiosis I, the X and Y chromosomes line up as if they were homologs. B) Normally in humans, all the sons of a male showing an X-linked phenotype will inherit the trait. C) Normally in humans, a male that is carrying an X-linked dominant trait will pass it to all his daughters. D) Normally in humans, all the sons of a female homozygous for an X-linked recessive gene will inherit that trait. E) Normally in humans, females are carriers of X-linked recessive traits if they are heterozygous.
One method plants use to obtain phosphorus when it is in limited supply is
A. by roots adhering to soil particles. B. by roots growing deeper in the ground. C. by roots binding the phosphorus. D. by roots using passive uptake methods. E. by roots associating with certain fungi.