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This question concernsthree E. coli genes. Genes a and b eachencode polypeptides of 300 amino acids, while gene cencodes a polypeptide of 3,000 amino acids. In trying to isolatemutations for each of these genes, I treated cells with a chemicalto introduce point mutations into the DNA; using this method anynucleotide in the genome has an equal probability of being mutated.I then screened for mutations in each gene. I found that one inevery 10,000 cells carried a mutation in gene a. Thus the mutation frequency for gene a is 1 in 10,000.
a. Given this information,what would you estimate to be the mutation frequency for geneb?
b. What is theprobability that a single bacterial cell would carry mutations inboth gene a and gene b?
c. What would be thelikely mutation frequency for gene c?
Need assistance with a paper on any disease or condition of the body. The paper should include thorough description of the disease/condition
The formation of surface blebs caused through ischemia reflects in part plasma membrane injury, but also a sign of cytoplasmic injury.
What information does it not provide that may be useful for deciding on conservation efforts. What are the genotypes of the parents.
Explain how chromatin-immunoprecipitation can determine what regions of the genome that the nucleoporins bind.
The dominant gases for the two bodies are different, but apart from that, the two atmospheres are very similar.
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?
A woman has a rare abnormality of the eyelids called ptosis, which prevents her from opening her eyes completely. This condition is caused by a dominant allele, P. The woman's father had ptosis, but her mother had normal eyelids.
Acetylcholine acts at the G-protein-linked receptor on heart muscle to make the heart beat more slowly by the effect of the G protein on a K+ channel. Which one or more of next would enhance this effect of acetylcholine.
If a man with blood type B, one of whose parents had blood type O, marries a woman with blood type AB, what will be the theoretical percentage of their children with blood type B?
Explain differences between complex and chemically defined media, between selective and differential media.
If you generated a mutation that sped up rate at which the node moves toward the posterior, what effect would it have on somite formation?
Are any parasitic diseases directly communicable from person to person? If so, how are they transmitted? What kinds of precautions should be taken in caring for persons with directly transmissible parasitic infections?
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