What information can a DNA library provide?
1.It provides the sequence of all the genes in a given organism.
2.It can reveal minor differences in the number of tandem repeats in an individual.
3.It can be used to isolate a particular gene of interest using a labeled probe.
4.It can be used to analyze DNA from crime scenes.
3
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Which of the following is not true of eukaryotic translation initiation?
A. All polypeptides synthesized by cytosolic ribosomes begin with a Met residue, not an fMet. B. A special initiator tRNA is utilized for initiation by cytosolic ribosomes. C. Polypeptides synthesized by mitochondrial ribosomes begin with fMet. D. The 40S ribosomal subunit binds the mRNAbefore any initiation factors.
A single seed lands on one of a group of isolated islands. Several million years later, its descendants
have evolved into a number of new species on the different islands, representing a variety of trees, shrubs, and vines. At that point in time, we have an example of
a. adaptive radiation. b. punctuated equilibrium. c. genetic drift. d. microevolution. e. mutation.
Which classification grouping includes the greatest number of species?
A. Order B. Phylum C. Domain D. Kingdom
The box numbered 2 represents which process?
A) cycling of energy
B) decomposers acting on all parts of the system
C) cycling of matter
D) gases in the atmosphere that can block sunlight