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In the eukaryotes, the transmit RNA genes exist as multiple copies and are transcribed by RNA polymerase III or RNA Pol III. As in prokaryotes, various tRNAs may be transcribed together to yield a one pre- transfer RNA molecule that is then processed to release the mature transfer RNAs. The promoters of eukaryotic transfer RNA genes are generally in which the transcriptional control components are situated downstream example for on the 3' side of the transcriptional start site (at position + 1). In reality they lie within the gene itself. Two such components have been recognized, called the A box and B box. The Transcription of the transmit RNA genes through RNA Pol III requires transcription factor IIIC (TFIIIC) as well as TFIIIB. The TFIIIC binds to the A and B boxes whilst TFIIIB binds upstream of the A box. TFIIIB holds three subunits, one of that is TBP (TATA binding protein), the polypeptide needed by all three eukaryotic RNA polymerases.
Which of the following serves as an effector, or as part of an effector, that functions in a negative feedback system? A. Muscarinic Acetylcholine Receptors (mAChRs) in the SA
Which type of plant tissue is cork? Cork, the material, for example, used to cap wine bottles, is extracted from the suber of a special oak known as cork oak.
Define the Classification of Carbohydrates? If you go back and read up your theory, you will recall that there are four main classes of carbohydrates based on the number of mon
Are the arteries or the veins constituted of more muscle tissue? How dissimilar are the walls of these two types of blood vessels? The arterial system has thicker muscle walls
Explain about the Simple Proteins? Simple proteins are those that are made of amino acid units just joined by peptide bond. Upon hydrolysis they yield a mixture of amino acids
a) Produce annotated diagrams that illustrate how nerve impulses travel i) along a neurone ii) across a synapse.
Explain Administrative dietitian Administrative dietitian play a major role in large-scale meal planning and monitoring the food preparation process by applying the
what are the gonad gland disorders and what do they do
Explain the Predator-Prey Relationships ? The feeding by a population of one species upon members of another species is referred to as predation. Many scientists also consider
For Dalmation dog, the spotted condition is dominant to non-spotted. a) Using a Punnet square, show a cross between two heterozygous parents. b) A spotted female Dalmation dog is m
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