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An unusual structure is formed at the 5? end of each cellular mRNA. What is it? After this has formed, does the mRNA have a 5? terminus? Explain.
1 3836Splicing of pre-mRNA involves an unusual phosphodiester bond. Why is it unusual? What parts of the intron/exon form this bond?
1 4474Many genes are regulated in both a negative and a positive manner. The genes mediating lactose metabolism in bacteria are a classical example. What are the two small molecule ligands that control expression of these genes? What does each one do?
1 4280Some proteins profoundly alter the structure of DNA when they bind, bending it far out of its standard B configuration. Where do you think the energy comes from to distort the DNA?
1 4345
Which animal is the fastest on foot?
How the production of rna called? What is the enzyme that catalyzes the process?
How to prepare plasma membrane from xenopus oocytes?
properties of fehling's reagent
Which marine mammal’s flesh is mostly used by eskimos?
what does the storage tissue in a seed do?
Why are trees green?
What is a burette?
Concerning their biological function what is the difference between rna and dna?
Why are the several carbohydrate side chains attached to hydrophilic rather than hydrophobic regions of the membrane protein ?
Ano po bang klaseng gagamba ang makagawa ng pinakamatigas supot (web)?
what substance the plant cell wall is made? Is that substance a polymer made of which monomer?
Late blight of potato and early blight of potato symptoms differences?
What are homologous chromosomes? Which are the human cells that do not have homologous chromosomes?
What is polyembryony?
