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Question: Transcription factor X binds to a response element in gene A and gene B. In muscle cells, transcription factor X activates transcription of gene A. In neuronal cells, the transcription factor X activates transcription of genes A and B. In skin cells, transcription factor X activates transcription of only gene B. In liver cells, the same transcription factor prevents transcription of genes A and B. Remember that genes A and B and all their associated regulatory regions are present (and identical) in all three cell types - the genes are only differentially expressed in the three cell types! Draw a schematic of three cell types, each containing the two genes and their regulatory regions. Indicate response elements and regulatory proteins that are bound to the gene in each cell. Introduce new regulatory proteins as necessary to fit the scenario above. Use as few regulators as possible.
Which declaration is NOT true about DNA replication. Replication can only begin at distinct regions known as origins of replication.
Think about a diploid organism with the genotype BbGgNnZZ. List all the different gamete types that this individual can produce.
In the harlequin-chromosome technique, you allow THREE rounds of replication in bromodeoxyuridine and then stain the chromosomes. What result do you expect to obtain.
Suppose that the long ear lobes in humans is an autosomal dominant trait that exhibits 30 percent penetrance. A person who is heterozygous for long ear lobes mates with a person who is homozygous for normal ear lobes.
Would you expect any differences in the sizes of the inserts in the two libraries? in brief explain.
Complete the table by writing down the genotype of the parents or parents involved in each cross. Utilize the letter P for purple and p for white. What are the genotypes of the parent plants.
Determine the frequency of the dominant allele and frequency of the homozygous dominant individuals?
The least amount of carbon dioxide from burning of fossil fuels. Toms father suffers a stroke that leaves him partially paralyzed on his right side. What type of glial cell would you expect to find in increased numbers in the area of the brain that i..
What colour horse would you use to expose the genotype of a black trotter. Why do mosses and ferns both require free water to complete their life cycles? At what stage of the life cycle is the water required.
The dorsal pigment pattern of frogs can be either leopard or mottled. The trait is controlled through an autosomal gene.
If succinate is used as the electron donor in oxidative phosphorylation, how many ATPs should be generated for each pair of electrons donated by succinate. explain What does UNCOUPLING mean.
How various different types of gametic combinations.
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