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CH 5 CQ
CH 5 CQ

... c) Cellulose has beta-glycosidic linkages; starch-digesting enzymes cleave only alpha-glycosidic linkages. d) Cellulose has beta-galactoside linkages that only bacterial beta-galactosidases can cleave. e) Cellulose fibers are covalently cross-linked; starch-digesting enzymes cannot cleave these cros ...
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Syllabus: Biochem 104b

... fundamental driving forces that shape macromolecules are only partially understood. In addition, biological macromolecules are very large and complex systems and so might evade rigorous quantitative analysis even if the basic principles were known. Therefore, the course will make extensive use of si ...
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8.4 Transcription - Issaquah Connect

... • Transcription makes three types of RNA. – Messenger RNA (mRNA) carries the message that will be translated to form a protein. – Ribosomal RNA (rRNA) forms the part of ribosomes where proteins are made. – Transfer RNA (tRNA) brings amino acids (protein “parts”) from the cytoplasm to a ribosome to h ...
Molecular genetics
Molecular genetics

... Editing is the modification of the m-RNA before translation. SnRNPs or Spurps are ribonucleoproteins binds to the m-RNA during RNA splicing. Spliceosomes are formed by the interaction of SnRNPs with other proteins. RNA capping is the process by which a guanine nucleotide (with methyl group) is added ...
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Biology 4 Sample Exam Questions Chapter 1 Choose the best

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Molecular Biology DNA Expression

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... When the MGMT pathway is employed, what is the approximate cost (in ATP equivalents) expended to remove a single methyl group from a guanosine residue? Why is this the case? (By the end of the course you should be able to calculate a reasonably precise answer to this question, not merely an approxim ...
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Ch 17 Protein Synthesis

... 1. small ribosomal subunit binds to mRNA upstream from the start codon 2. ribosome scans mRNA until it put start codon (AUG) at the P-site 3. tRNA with Met hydrogen bonds to start codon 4. large subunit attaches ...
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... NUCLEIC ACIDS Phosphodiester Bond Phosphate linkage that connects two sugars by ester linkage Diester bond is one which involves two ester bond Phosphodiester bond will be formed between any two adjacent nucleotides (bet. The 5’ phosphate of one nucleotide and the 3’ hydroxyl of another) ...
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pbs weekly syllabus - Madison Local Schools

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... Viruses are a very interesting example of self-replicating organisms. They consist of a protein capsule (capsid) containing DNA or RNA (1000-200000 base pair) with all the information necessary for their replication. The replication, however, needs a host cell that dies afterwards, making viruses pa ...
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... Examples of Biological evidence • ______________________________________________________________________________________ The Function and Structure of DNA DNA contains the __________________ material of a cell; holds all of the ___________________ needed for a cell to make proteins and to replicate. ...
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PPT NOTES_AP Biology Chapter 17 Notes

...  First: a correct match between a tRNA and an amino acid, done by the enzyme aminoacyl-tRNA ____________________  Second: a correct match between the tRNA _________________ and an mRNA ___________ • Flexible pairing at the third base of a codon is called ___________________ and allows some tRNAs t ...
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Ch 8 Carbon Chem

... arrangement of atoms in a molecule. Methane CH4 ...
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... 1. Adaptation (by evolution) for: a. Coping with abiotic factors – polar bear’s heavy fur, leaf drop in winter by deciduous plants b. Obtaining food – a frog’s long tongue, broad plant leaves, different moth parts of insects Escaping predation – thorns on plants, warning colors on insects, carapace ...
Classwork May 15th
Classwork May 15th

... Protein Synthesis 19. RNA is short for what kind of nucleic acid? [1pt] 20. Compare and contrast DNA and RNA. [6pts] 21. What are the two types of RNA used in protein synthesis? [2pts] 22. Describe the process of protein synthesis. Include the words, template, codon, mRNA, tRNA, DNA, ribosome, amino ...
Lecture 8 RNA Secondary Structure Central Dogma
Lecture 8 RNA Secondary Structure Central Dogma

... • In the central dodgma, we talk about mRNA coding for protein. There are also tRNA and rRNA that are also coded for by the DNA. The MicroRNAs (miRNA) are small (22 nucleotides) non-coding RNA gene products that seem to regulate translation • The RNA has features in it sequence that gives it a struc ...
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Nucleic acid analogue



Nucleic acid analogues are compounds which are analogous (structurally similar) to naturally occurring RNA and DNA, used in medicine and in molecular biology research.Nucleic acids are chains of nucleotides, which are composed of three parts: a phosphate backbone, a pucker-shaped pentose sugar, either ribose or deoxyribose, and one of four nucleobases.An analogue may have any of these altered. Typically the analogue nucleobases confer, among other things, different base pairing and base stacking properties. Examples include universal bases, which can pair with all four canonical bases, and phosphate-sugar backbone analogues such as PNA, which affect the properties of the chain (PNA can even form a triple helix).Nucleic acid analogues are also called Xeno Nucleic Acid and represent one of the main pillars of xenobiology, the design of new-to-nature forms of life based on alternative biochemistries.Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally occurring DNA or RNA by changes to the backbone of the molecule.In May 2014, researchers announced that they had successfully introduced two new artificial nucleotides into bacterial DNA, and by including individual artificial nucleotides in the culture media, were able to passage the bacteria 24 times; they did not create mRNA or proteins able to use the artificial nucleotides. The artificial nucleotides featured 2 fused aromatic rings.
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