Polymers/Oligomers of mononucleotides. Nucleotides are composed of heterocyclic bases such as Adenine, Guanine, Thymine, Cytosine, and Uracil linked to a backbone moeity such as ribose (RNA), deoxyribose (DNA), N-(2-aminoethyl)-glycine (PNA), etc. These monomers are usually linked by phosphodiester ...

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Do snRNAs exit the nucleus or not?

In Molecular Biology of The Cell (Alberts, et al., 2015), it lists the various RNAs that are trafficked through the Nuclear Pore Complex (NPC) into the cytoplasm. The list includes snRNAs, but I ...
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In the life-cycle of the HIV virus, how does the created DNA enter the nuclear membrane?

I am in a high school biology class, so I cannot truly attest to how accurate the information I am given is, but as far as I know only RNA and very small molecules can enter the nuclear membrane ...
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Why is A-U bond less stable than A-T bond?

I have encountered the following fact many times, but have not yet encountered a possible explanation for it. Will you please help me understand the molecular mechanism by which the bond between ...
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Inter-codon mutations statistical analysis

I am looking for a statistical approach to inter-codon mutations. For example a 64*64 (64*63 actually) table, that contain the possibility of mutation from one codon to another codon (CCA to CAA or ...