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You are studying the expression of a proto-oncogene in a cancer cell and comparing it to expression in a non-cancer cell. You have done experiments to detect the presence of the proto-oncogene (DNA), the messenger RNA, and the protein in both cell types. Both cells have two copies of the gene. The non-cancer cells contain no RNA and no protein corresponding to the gene, but the cancer cells have abundant RNA and protein corresponding to the gene. How can these observations be explained?A) by regulation of mRNA degradation onlyB) by transcriptional and translation regulationC) regulation by either transcription or mRNA degradationD) by transcriptional regulation only
Life arose in water. Explain w hy do you think colonization of land represented a major evolutionary step in the history of life?
Explain why is agar typically used as a solidifying agent in microbiological media instead of gelatin? What could happen if gelatin was used?
Each olfactory receptor gene is involved in detecting specific odors. However, humans are losing OR genes, while mice and other mammals have ~ 1500 such gene.
Assume you are testing a hypothesis that population density of a particular plant species influences the rate at which a pathogenic fungus infects the plant.
Imagine looking during a microscope at a squashed onion root tip. The chromosomes of many of cells are plainly visible. In some cells, replicated chromosomes are aligned along center (equator) of the cell. These particular cells are in which stage of..
iscuss how do we get concentration gradients in neurons? how can we test if these processes are active or passive?
Point out similarities and differences in their scientific foundation. What is the mainly abundant cell type? Which is the slightest prevalent.
Provide a basic toxicology report of the effects of PVC on a human, including possible carcinogens or neurotoxins?
The condition known as Bell's Palsy may result in drooping of the face. Typically, the condition is unilateral but in rare instances can be bilateral.
If you started a PCR protocol with 10 double stranded molecular of DNA, Determine how many double stranded molecules of product would you have after 5 cycles of PCR?
Three bases per codon are the minimum necessary to code for twenty different amino acids when four different bases are involved.
Do you think biochemical testing must be recommended to detect the deleterious gene in Mrs. Lehman. Which one increased their alveolar ventilation, or do they stay the same? Why with appropriate reason.
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