The true ribs
A) attach only to the vertebral column.
B) attach directly to the body of the sternum by bone to bone contact.
C) are the only ribs that are unpaired.
D) consist of twelve pairs.
E) attach to the sternum by separate cartilaginous extensions.
E) attach to the sternum by separate cartilaginous extensions.
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In the whole-genome shotgun method, the genome is fragmented and individual fragments are sequenced. How is the
order of the nucleotides determined for the original intact chromosome?
a. The fragmentation is done in a systematic way such that the physical arrangement of fragments is readily apparent. b. The random fragmentation produces overlapping sequencesthat can be aligned and assembled to generate the original intact DNA molecule.
c. We supplement our information with data from a different technique to determine the final chromosome arrangement. d. DNA hybridization assays are conducted to determine the physical arrangement of the genes on the chromosome. e. After sequencing, the fragments are labeled and used as probes in a microarray.
What is one problem associated with using retroviruses as human gene therapy vectors?
A) Their random integration into the host chromosome may result in detrimental mutations. B) They need to integrate through an RNA intermediate. C) The level of proteins produced from them is usually very low. D) The level of proteins produced from them is usually very high.
Which of the following is not a characteristic of inflammation?
A) Local heat B) Pain C) Fever D) Redness E) Swelling
A biologist discovered a new animal. Upon studying its embryonic development, she observed radial cleavage with the blastopore developing into an anus. This animal was categorized as a
A. parazoan. B. protostome. C. radiata. D. deuterostome. E. pseudocoelomate.