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Define Transcription Phase of Gene Expression Process?
Transcription is the enzyme synthesis of RNA on a DNA template. This is the first stage in the overall process of gene expression and eventually leads to the synthesis of a protein encoded by the respective gene; it is catalyzed by an WA polymerase. RNA polymerase binds to a specific DNA sequence called promoter to initiate RNA synthesis. These sequences are upstream end of the region that codes for protein and they contain short conserved DNA sequences, which are common to different promoters. The binding of RNA polymerase to the promoter sequence results in local DNA unwinding. Very few RNAs are transcribed directly into the final mature RNA product. Most newly transcribed molecules undergo various alterations to yield the mature product. RNA processing is used to describe these alterations to the primary transcript.
Anima l Nutrition Nutrition is the procurement of substances necessary for growth, maintenance and activities of a living body. The substances used for nutrition are called
What is meant by "post-translational modification"? Give examples of post-translational modifications of the following amino acids: a. Serine b. Lysine C. Choose a third amino acid
what are the characteristics of animal population
parasitic adaptations
Severe Acute Respiratory Syndrome (SARS) After travelers' diarrhea, respiratory infection is the most common infectious disease affecting travelers. In the winter of 2003 a ne
In how many parts Classification of Hydrocolloids Hydrocolloids, based on their solubility, thickening and gelling properties in water, are categorized into two main classes.
1- Describe the function of enzymes in catalyzing biological reactions ? 2-Descride enzymes ' role in reducign activation energy?
Explain Assessment of Iron Status? In view of widespread iron deficiency, it is important to have reliable and sensitive measures of iron status. Iron status can be assessed by
Discuss why Obelia is considered to be of special interest in Zoology as an animal showing an intermediate grade of organization.
A zoologist is investigating a population of squirrels whose coat color is controlled by a single gene whose two alleles (B1 & B2) are codominant. B1B1 individuals are black, B1B2
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