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科目:生物化學
科目:生物化學

... increases rapidly between pH 8 and 10. Suggest explanations for these observations.(10%) ...
Slide ()
Slide ()

Ch 3 Cells - Review Cell theory The cell is the smallest unit of life
Ch 3 Cells - Review Cell theory The cell is the smallest unit of life

... 5. Other chemicals on the cell's surface (eg. glycocalyx) can be used by the body to recognize which cells are our own. These "identification markers" are called antigens. ...
File
File

honors biology - Uplift Education
honors biology - Uplift Education

... many key roles in the manufacture of proteins. RNA can also act as an enzyme, promoting chemical reactions that link amino acids to form proteins. ...
DNA - Midlakes
DNA - Midlakes

... combination of their genes. However if we were to compare your DNA to your parents it would be similar. ...
Document
Document

... 7. What are the main features of repressor and corepressor? 8. Explain how the regulatory protein AraC can be both a repressor and an activator. 9. Why does attenuation not occur in eukaryotes? 10. List two mechanisms a bacterial cell uses to control the amount of mRNA present inside the cell. 11. W ...
1 Cell biology
1 Cell biology

Water, Carbohydrates, Lipids, Proteins, Nucleic Acids
Water, Carbohydrates, Lipids, Proteins, Nucleic Acids

... Like letters of the alphabet, they can be strung together in any sequence or length to create a spectacular variety of proteins ...
Chemistry of Life Answers 1. Differentiate between an ionic and
Chemistry of Life Answers 1. Differentiate between an ionic and

... • Primary structure: sequence of amino acids that make up a polypeptide chain. • Secondary structure: Hydrogen bonding that causes coils and folds in a polypeptide chain (e.g., alpha helix, beta-pleated sheet). • Tertiary structure: Supercoiling of a polypeptide chain • Quaternary structure: two or ...
Chapter 12
Chapter 12

... – introns, interrupting sequences that separate – exons, the coding regions. ...
Protein Synthesis PPT - Welcome to Highland Local Schools
Protein Synthesis PPT - Welcome to Highland Local Schools

... • Transcription-When the instructions for making a protein are transferred from a gene to an RNA molecule • Translation-When instructions on an RNA molecule are read and coded as proteins ...
PowerPoint - Center for Biological Sequence Analysis
PowerPoint - Center for Biological Sequence Analysis

... DNA findes I celle kernen (Eukaryoter) base paring T substituted with U in RNA Reading direction Reading frame (1,2,3,-1,-2,-3) 64 codons DNA -> mRNA Intron, exon & UTR (non-coding exon) Intron/Exon splice site ...
Unit 4 Genetics
Unit 4 Genetics

... • That external DNA combines with the cell’s DNA • As the cell copies its own DNA, it also copies the external DNA, since the 2 were combined during transformation ...
Biotechnology
Biotechnology

... – Manipulating genes (read both parts 1 and 2) – Understanding heredity (make a list of the people and each ones major contribution) – Explore a stretch of code (define hitchhiking code, ancient code, sites of variation) – Sequence for yourself (complete the activity) ...
Table S13. Description of TCOF1 related proteins
Table S13. Description of TCOF1 related proteins

... mutS homolog 2, colon cancer, nonpolyposis type 1 (E. coli); Component of the post-replicative DNA mismatch repair system (MMR). Forms two different heterodimers: MutS alpha (MSH2- MSH6 ...
Slide 1
Slide 1

... Peak of intergenic location found with high representation in all 3 libraries and showing miRNA potential (hairpin) 4 manuscripts in preparation using Solexa data • At the end of spermatogenesis the DNA is not methylated small RNAs may transfer the information for methylation • Discovery of a new cl ...
Notes to Educators
Notes to Educators

... Amino acids share a common backbone, through which the amino acids are joined by peptide bonds to build proteins. The amino acid sidechains, however, vary in structure and chemical properties. The properties of these sidechains (non-polar, polar but uncharged, positively wish to have your students e ...
DNA intro website questions
DNA intro website questions

... 2. How many amino acids regularly occur in proteins? (Chromosome Structure) 3. What is a nucleosome? (DNA structure) 4. What does DNA stand for? 5. What are the two purines? 6. What are the two pyrimidines? 7. The human genome contains over_____________ base pairs. (DNA Replication) 8. What splits t ...
Protein Synthesis Role Modeling Activity
Protein Synthesis Role Modeling Activity

... amino acids will be in the polypeptide that is formed? A. How many nucleotides will be in the mRNA? B. How many anticodons will there be? 3. What is the function of mRNA? 4. What are the difference between messenger RNA and transfer RNA? How are they similar? ...
RNA polymerase
RNA polymerase

... interact with DNA to cause mutations. • Physical agents include high-energy radiation like X-rays and ultraviolet light. • Chemical mutagens may operate in several ways. • Some chemicals are base analogues that may be substituted into DNA, but that pair incorrectly during DNA replication. • Other mu ...
Sample Questions for EXAM III
Sample Questions for EXAM III

... 3. p53 is a kinase, which can phosphorylate many different cells cycle proteins. 4. p53 is involved in cell-cycle regulation in a wide variety of human cell types. ...
Chapter 4 Study Guide File
Chapter 4 Study Guide File

... 3. Describe the steps of the sodium-potassium pump. You may answer this one by doing a short skit! ...
DNA RNA Protein
DNA RNA Protein

... A prion is an “infectious protein”. Prions are the agents that cause mad cow disease (bovine spongiform encephalopathy), chronic wasting disease in deer and elk, scrapie in sheep, and Creutzfeld-Jakob syndrome in humans. These diseases cause neural degeneration. In humans, the symptoms are approxima ...
Document
Document

... nucleotides (exception – no thymine in RNA; replaced with uracil) • making of mRNA is transcription ...
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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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