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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
There are four main categories of molecules of life. Complete the table given by indicating, the name of each of the four categories of the molecules of life
pneumonia is diagnosed by the presence of fluid dark shadows in an x-ray image in the alveoli. given that pneumonia
Why does a calico cat have patches of orange and black hair? If a calico cat were cloned, would the cloned kittens look identical to the female whose genetic material was used for the cloning?
How will increasing the number of yeast cells affect the rate of ATP production by the cells (in moles ATP/ hr) if the sugar concentration in the experiment is held constant?
A human RBC is approximately 8 micrometers in diameter. An unknown bacterium measures 1 ocular space using the oil immersion objective compared to 3 spaces on the stage micrometer. How big is the unknown bacterium ?
By which process Lipid-soluble molecules would be expected to cross the Cytoplasmic Membrane?
what is glycerol bounded with lauric acid? what is glycerol bounded with caproic acid? What is glycerol bounded with butyric acid?
Describe the process of fat hydrogenation, and discuss its advantages and disadvantages, List strategies for lowering fat intake with minimal impact on diet palatability.
What cell types are derived from myeloid versus lymphoid progenitor cells? Describe the function of each WBC type.
q1. frogs are extremely sensitive to acid rain. how might this information be used to investigate your observation
Describe the process of DNA replication and the importance of DNA complemetary base pairing to that process. Why is this process called "semi-conservative"?
Which is easier to dispose of in a flock of chickens? A recessive allele for erect combs or a dominant allele for feathered legs. How various generations would it take.
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