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Gene repressor proteins which inhibit the transcription of particular genes in eukaryotes also exist. They may act by binding either to control parts within the promoter region near the gene or at sites located a long distance away from the gene, called as silencers. The repressor protein should inhibit transcription directly. One instance is the mammalian thyroid hormone receptor that, in the absence of thyroid hormone represses transcription of the goal genes. Furthermore, other repressors inhibit transcription by blocking activation. This can be get in one of several ways: by blocking the DNA binding site for an activator protein, through binding to and masking the activation domain of the activator factor, or by forming a non-DNA binding complex with the activator protein. Several instance of every mode of action are known.
Problem 1: How many different types of RNAs are present? What is the function of Promoter in Transcription? Mention different types of RNAs Discuss function of Promot
What is the notochord? How is this structure formed? The notochord is a rodlike structure that produces the supporting axis of the embryo and gives birth to the vertebral colum
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What are gametes? Gametes are cells specialized in sexual reproduction. They have half of the maximum number of chromosomes of the species and unite with another gamete giving
Q. Explain about Utility Gloves? Because of the increased risk of percutaneous injury during instrument cleaning (100% of the Faculty incidents reported in academic year 2003/0
The hydrolysis of the disaccharide lactose (in milk) give up glucose and galactose. Thus galactose is also a major dietary sugar for humans. Glucose and Galactose are epimers which
what are characteristics of protozoa?
State in brief about respiration When we breathe in the air, our chest expands and air is taken in the lungs and when we breathe out chest returns to its resting position. This
Q. ST-segment depression after hyperventilation? Patients with abnormal autonomic drive have demonstrated ST-segment depression after hyperventilation as well as after exercis
You have identified a protein in a cell that you know that comes from the human body. With respect to that protein you have also determined that it allows sodium ions to go through
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