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A plasmid contains genes for ampicillin resistance and tetracycline resistance and has single sites for restriction sites BglII, PstI and EcoRI. When genes are inserted into the PstI site, transformants are resistant only to ampicillin. In which region is the site for PstI located?
a. within the ampicillin gene
b. within the tetracycline gene
c. between the ampicillin and tetracycline genes.
Assume you treated butter with a fatty acid desaturase, an enzyme that removes hydrogen from fatty acids and creates double bonds.
If two chromosomes of a species are the same length and have a similar centromere placement but are not homologous, what is different about them.explain the concepts of homologous chromosome
Two Hfr strains are isolated from a prototrophic coli strain. Both Hfr strains are mated with a Str(r) F- E. coli strain that is mutant for all the genes listed.
A diploid species has 2n = 52 chromosomes. If you found a monosomy in a member of this species, how many chromosomes would it have?
What is the piston height h if the temperature is 30 degrees? How far does the piston move if temperature is increased by 200 degrees.
Which of following are true of axial musculature:It arises elsewhere, however inserts on the axial skeleton. It makes up 40 percent of the body musculature.
The leaves of the Holly tree were discovered to have different densities of stomata depending on whether they were located near the center of the tree or at the periphery.
Cut wings is an X chromosome recessive mutant of D melanogaster. Antennaless is an autosomal recessive mutant. A cut, antennaless female is mated to a wild-type male.
A couple is about to have a child. They are concerned about the child because of two traits caused by genes on the SAME chromosome.
In the common mouse species, Mus musculus, the mutant yellow fur gene is dominant to the allele for normal fur color. When homozygous.
Aspirin has a pH of three. Some people who take large amounts of aspirin (for example, for arthritis) take a pill that combines aspirin with Maalox. What is the reason for this combination.
Though plants, fungi, and prokaryotes all have cell walls, we classify them under different taxonomic units. Which of the observations below comes closest to explaining the basis for placing these organisms in different taxa.
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