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Beadle and Tatum discovered several classes of Neurospora mutantsthat were able to grow on minimal medium with arginine added. Class I mutants were also ableto grow on medium (no arginine) supplemented with either ornithine or citrulline, whereasclass II mutants could grow on citrulline medium but not on ornithine medium. The metabolicpathway of arginine synthesis is as follows:Precursor ---> Ornithine ----> Citrulline ----->Arginine A B CFrom these growth results, they could conclude thata. One gene codes for the entire metabolic pathwayb. The genetic code of DNA is a triplet codec. Class I mutants have their mutations later in the nucleotidechain than do class II mutants, and thus have more functional enzymesd. Class I mutants have a nonfunctional enzyme at step A, and classII mutants have a nonfunctional enzyme at step Be. Class I mutants have a nonfunctional enzyme at step B, and classII mutants have a nonfunctional enzyme at step C
question 1-what sars viral proteins are made using the frameshifting? nbspis there only one sars viral protein made
What is the goal of comparative genomic studies?
You are given a 10 ml blood sample. After doing a series of dilutions you have made an over all dilution of 1/200th. In a 0.1 ml sample from this final dilution, you are able to count 5 white blood cells. How many white blood cells were in the ori..
In the killer whale hunting strategy, (a) propose two hypotheses for each (i) the origin of this hunting strategy and (ii) evolution of seal defense behavior. (b) Propose the tests of both of your hypotheses.
Why do DNA and RNA polymerases can only elongate nucleotides 5' to 3'? How does this limitation affect DNA replication and RNA transcription?
Highest level of the diaphragm in expiration when identified along the midclavicular line is located at which of the following landmarks?
The law of independent assortment states that inheritanceof alles for one trait is not affected by the inheritance of alleles for a different trait if the genes for the traits are on______ chromosomes. A couple has two boys both of whom are boyus. ..
how this Statement applies to replication or transcription
what are the methods bacteria use to take up foreign DNA.
It is not normal to administer a pure drug to a patient. Almost all the drugs are administered in form of a medicine. A medicine is a mixture of one or more drugs combined or formulated with the other inactive materials known as excipients.
How are virus particles assembled. Where do they get proteins for the nucleocapsid and proteins embedded in the envelope.
Write the formula for water potential, and give the name for each component. Using the appropriate term(s) in the formula, when will water will enter a cell or exit a cell?
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