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Eukaryotic chromosomes are highly organized and structured. The structure of chromosomes must be changed and remodeled for replication and transcription to take place. Describe the structure of eukaryotic chromatin and how this structure must be remodeled for transcription to occur. You must understand the role of histones, histone modifications, DNA modifications and DNA binding proteins.
Refer to your textbook for more detailed data about the layers of human skin. Indicate whether each of the following structures is found in the epidermis, dermis, or subcutaneous layer.
The phylum porifera consists of sponges which are essentially colonies of flagellated cells. Which of the following is a characteristic of the phylum
As a cell grows, what happens to its surface area : volume ratio? (Think of a balloon being blown up). How is this changing ratio related to cell division.
What is Hydrophobic interaction chromatography? and how do high salt, medium salts, and no salt buffers paly a role in the purification of GFP? I know that no salt brings polar amino acids to the surface of GFP
Plasmids, which are associated with membrane proteins, depend on bacterial chromosomal DNA for replication. If the genome contains ~30,000 genes, about how many genes would be removed by a deletion of DNA that might be detected by karyotype analysis.
In a certain plant, fruit is either red or yellow, and fruit shape is either oval or long. Red and oval are the dominant traits. Two plants, both heterozygous for these traits.
Diversity in tropical regions is generally greater than at high latitudes. Explain two different hypotheses that propose the mechanism for this pattern that remains a biological mystery
A cell population that you are increasing in a culture dish expresses Sox2. Discuss how do you make sure it is a pluripotent cell, not a neural stem cell?
What is the phenotypic ratio for the F2 generation? Demonstrate the work, including your key. what are Harry and Sally's blood types? Show your work. What if blood typing exposed Harry had type O blood.
liquid portion of blood is known as ______. Most of the plasma comprises of ______ that serves as a solvent and carries heat. ______ like sodium, potassium and ______ serve to manage the osmotic balance in the blood.
Choose one of the positions below and defend it. Explain the conflict between the use of nuclear technology to make the atomic bomb, and the benefit of nuclear physics to cancer therapy.
Perform visual comparison of the assigned two putatively related nucleic acid sequences x and y. Indicate in your answer the identities by 1s on match and 0s on mismatches. Also indicate mutations by the scoring indices S for transition and V for ..
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