A yeast artificial chromosome (YAC) is a ____ that can accommodate large DNA inserts and uses the eukaryote yeast
as a host cell.
a. restriction enzyme produced from yeast chromosomes
b. labeled nucleic acid used to identify a clone within a genome and
c. q arm of chromosome 15 within a cell that encodes for a restriction enzyme and
d. cloning vector that has telomeres and a centromere
e. cloning vector that has 23 chromosomes
d
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What must happen to amino acids before they can be used in catabolic reactions?
A. They must be decarboxylated B. They must be deoxygenated C. They must be dehydrogenated D. They must be deaminated
Why do the deciduous leaves on temperate forest trees turn from green to orange, red, and/or yellow before falling?
A) The chlorophyll changes color as it's broken down. B) The chlorophyll is absorbed by the tree, leaving the other pigments visible. C) New photosynthetic pigments are created as the amount of daylight becomes limited. D) New pigments are created in response to colder temperatures.
Which of the following technologies allowed marine biologists to descend below the surface and observe marine organisms in their environment?
A) Sound Navigation Ranging SONAR B) The Chronometer C) Self-Contained Underwater Breathing Apparatus D) Floating Instrument Platform FLIP
Studies of the Pax6 gene and its homologs suggest that
A. the eyes of many different species are descended from a common ancestor. B. the master genes of the eye in various species are not homologous. C. the simple eyes of invertebrates and complex eyes of vertebrates arose from two different ancestral control genes. D. the eye has evolved independently multiple times.