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In Agarose gelelectrophoresis of DNA, what are the purposes of running a DNAladder (DNA marker) alongside the sample? How does the percentageof gel affect the migration of DNA fragments?
A unit of enzyme activity is usually defined as the amount of enzyme converting 1µmol of substrate per minute under optimum conditions. If the reaction cuvette had a volume of 1mL, calculate how many enzyme units were present in 10µL of enzyme ext..
What are the unique ecological contraints that limit/encourage asexual versus sexual reproduction in multi cellular plants versus multi cellular animals.
Define a genetic mutation and state the types of genetic mutations. Discuss the effects of genetic mutations.
How does the brain recognize the difference between high C and low C? Between a loud and a soft sound.
A mutation is defined as a changein the base sequence of DNA. This may occur as a“mistake” in DNA replication, for example. Suppose that during DNA replication, two mutant DNA sequencesare produced as shown below. For the 2 mutated DNA sequences, you..
Trace the path of an electron from its origins at the reactioncenter of photosystem II to its final electron acceptor at the endof photosystem I. Be able to name the main molecules involved inthe process (this does not include the individual molec..
Explain how photons falling on a rod cell in your retina leads to an action potential traveling through the optic nerve. Explain how light energy is transduced into a chemical signal and how each cell influences the next until you reach the axon of a..
which version of iron would predominate in early earth condition? explain why. which version of iron predominates
Early in development, most human cells turn off expression of essential component of telomerase, enzyme responsible for addition of telomere repeat sequences to ends of chromosomes.
If coliforms are found in a water sample, the IMViC test will help determine whether the coliforms are of fecal origin and not from plants or soil. What IMViC results would indicate the presence of fecal coliforms?
What is the name of the term or law that allows traits to skipa generation and appear in the next? How can we decide which monosaccharide or a disaccharide show apositive reaction?
1. Make a list of the top 5 grain crops. Include the following details under the heading for each crop: metric tons produced, site of original domestication and estimated length of time of domestication, protein content, primary uses and a fin..
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