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1. What are dideoxynucleoside triphosphates, and what is their purpose?2. For the three steps of a Polymerase Chain Reaction, indicate the temperature of each step, and what happens during that step.i)ii)iii)3. Alchemase is an enzyme found in some geese that converts lead into gold.This is a restriction map of the goose alchemase gene: The SalI restriction site in the box is polymorphic. Geese with a functional alchemase gene secrete gold into the egg white when they are fed a diet rich in lead. A functional alchemase gene, ALC+ (which is dominant to a mutation that inactivates the gene) has that SalI site. Most geese have a mutation that inactivates the alchemase gene (alc-), and that mutation also eliminates the SalI site. These geese do not lay golden eggs, and will die if fed large amounts of lead. Someone tries to convince you to buy a goose that supposedly lays golden eggs, but before buying it you manage to get a DNA sample from the goose. After digesting the goose's DNA with SalI, you run it on a gel and blot it. You have PCR primers that will amplify the region of DNA identified in the figure. You radioactively label this PCR product and use it as a probe of your Southern blot. What result(s) would you see on the blot in these three cases:a) the goose is an alchemase mutant, and you should not buy it.b) the goose is heterozygous for alchemase, and you should buy it.c) the goose is homozygous for a functional alchemase gene, and you should buy it.
A train is travelling up a 3.73 degree incline at a speed of 3.25m/s as the last car breaks free. How far does last car travel before its speed momentarily reaches zero.
There is approximately 2,000 cubic kilometers of water stored in rivers around the world. Using the terms water cycle, flux and pool, explain under what situations removing 1000 cubic kilometers per year from rivers for human use could be sustainable..
The given statements describe SDS-PAGE, a method used to separate proteins. Some of the statements are correct, and some of them are incorrect.
The digastric and omohyoid muscles are similar in that they both have________. Suprahyoid, Two bellies, 60
Joshua Ledergerg said, "Our only real competition for domination of planet remains the viruses." In what respect might you make a similar argument about insects.
Compare and contrast prokaryotic and eukaryotic cells. If shape and colour of radishes are both due to genes with partly dominant alleles, crossing two dihybrid heterozygotes will produce how many different phenotypes.
A cross is made in a haploid strain of Neurospora of genotype nic + ad and another haploid strain of nic ad + . From the cross, a total of 1000 linear asci are isolated and characterized as in the following table.
If you place some delicious berries in a closed container in a pen one hectare in size and place a bear in the pen, bears will find those berries in an average of thirty minutes and twenty seconds,
In pea plants, genes A,B,C,D and E are located on separate chromosomes, A plant with genotype AABBccDDee is mated with a plant with genotyoe AAbbCCDDEE.
In turtles, brown shells and the red legs are most prevalent forms of the traits. Occasionally, green shells and yellow legs are examined.
Assume you have a pure breeding mutant donkey that has very large teeth and very large ears. Both phenotypes are completely recessive to the normal phenotype.
Explain in molecular detail how scientists could develop antibiotics that contact multiple sites on rRNAs and /or r-proteins within the bacterial ribosome.
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